Approved sources and substitutes
Every maker's item codified on this stock number, with the catalogue's order of use.
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-636-0909
THREAD LENGTH: 0.375 INCHES NOMINAL OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.168 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.168 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.000 INCHES NOMINAL
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-117-5177
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.190 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.190 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 1.250 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-181-0416
THREAD LENGTH: 0.375 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 299.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 0.750 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.190 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.190 MOUNTING FACILITY INCHES NOMINAL
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-855-6219
THREAD LENGTH: 0.438 INCHES NOMINAL OUTSIDE DIAMETER: 1.000 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.250 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.250 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 1.250 INCHES NOMINAL
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-064-7986
OUTSIDE DIAMETER: 0.250 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 0.625 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-148-3637
THREAD LENGTH: 0.375 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 299.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-175-2736
THREAD LENGTH: 0.250 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 249.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL
OEM source-control number — the OEM’s own reference for this item; the other members are its approved sources per codification. All of this OEM’s references →
INSULATOR,STANDOFF
NSN 5970-00-989-2617
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.164 ELECTRICAL TERMINATION INCHES NOMINAL OVERALL HEIGHT: 1.875 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
10-47D DABURN WIRE & CABLE CORP
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-134-9074
THREAD LENGTH: 0.625 INCHES NOMINAL OUTSIDE DIAMETER: 1.000 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.250 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.250 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.000 INCHES NOMINAL
1003 ADVANCED TECHNICAL CERAMICS COMPANY
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-296-4887
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.164 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.164 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.000 INCHES NOMINAL MATERIAL: CERAMIC OVERALL · CERAMIC MOUNTING BASE
1005 ADVANCED TECHNICAL CERAMICS COMPANY
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-284-7061
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.164 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.164 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 3.000 INCHES NOMINAL MATERIAL: CERAMIC OVERALL
INSULATOR,STANDOFF
NSN 5970-00-250-1647
THREAD LENGTH: 0.375 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 249.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 0.750 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.190 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.190 MOUNTING FACILITY INCHES NOMINAL
1023-04 TITAN CORP THE INDIANA GENERAL
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-175-2733
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 0.500 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
1054627 NAVAIR AND NAVSEA MANAGED ORIGINAL
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-578-2181
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 0.750 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
INSULATOR,STANDOFF
NSN 5970-00-331-7198
2626 HUBBELL INCORPORATED (DELAWARE)
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-855-6222
THREAD LENGTH: 0.625 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 299.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 1.000 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.250 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.250 MOUNTING FACILITY INCHES NOMINAL
33C842-002 AIL SYSTEMS INC SUB OF EATON CORP
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-107-7221
THREAD LENGTH: 0.188 INCHES NOMINAL OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 0.625 INCHES NOMINAL
39-42 BARKER & WILLIAMSON
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-117-5247
OVERALL WIDTH: 0.750 INCHES NOMINAL THREAD LENGTH: 0.375 INCHES NOMINAL OVERALL LENGTH: 0.750 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 249.0 VOLTS PER MIL /0.001 INCH/
39-47 BARKER & WILLIAMSON
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-175-2747
OUTSIDE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.107 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.107 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.000 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
INSULATOR,STANDOFF
NSN 5970-00-117-5245
OVERALL WIDTH: 0.750 INCHES NOMINAL OVERALL LENGTH: 0.750 INCHES NOMINAL OVERALL HEIGHT: 1.000 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
426768-12 LOCKHEED MARTIN CORPORATION
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-280-4890
THREAD LENGTH: 0.625 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 249.0 VOLTS PER MIL /0.001 INCH/ OUTSIDE DIAMETER: 1.000 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.250 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.250 MOUNTING FACILITY INCHES NOMINAL
61315 NAVAL SHIP SYSTEMS COMMAND
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-117-5155
OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.164 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.164 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.500 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
61490 NAVAL SHIP SYSTEMS COMMAND
CONFIRMED
INSULATOR,STANDOFF
NSN 5970-00-117-5150
THREAD LENGTH: 0.500 INCHES NOMINAL OUTSIDE DIAMETER: 0.500 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.138 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.138 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.000 INCHES NOMINAL
INSULATOR,STANDOFF
NSN 5970-00-117-5297
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.190 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.190 MOUNTING FACILITY INCHES NOMINAL OVERALL HEIGHT: 2.500 INCHES NOMINAL IDENTIFICATION CODE COLOR: WHITE
+ 19 more members in this group.
Stated characteristics
The codification record's own dimensions and material statements — official, and public by nature.
IDENTIFICATION CODE COLORWHITEFLIS characteristics (MRC)
THREAD LENGTH0.625 INCHES NOMINALFLIS characteristics (MRC)
OUTSIDE DIAMETER1.000 INCHES NOMINALFLIS characteristics (MRC)
OVERALL HEIGHT2.500 INCHES NOMINALFLIS characteristics (MRC)
THREAD LOCATIONMOUNTING FACILITY AND ELECTRICAL TERMINATIONFLIS characteristics (MRC)
MOUNTING FACILITY TYPE AND QUANTITY1 THREADED HOLE(S)FLIS characteristics (MRC)
SCREW THREAD QUANTITY PER INCH AND LOCATION20 ELECTRICAL TERMINATION AND 20 MOUNTING FACILITYFLIS characteristics (MRC)
SCREW THREAD DIAMETER AND LOCATION0.250 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.250 MOUNTING FACILITY INCHES NOMINALFLIS characteristics (MRC)
THREAD CLASS AND LOCATION2B ELECTRICAL TERMINATION AND 2B MOUNTING FACILITYFLIS characteristics (MRC)
STYLE DESIGNATORPILLARFLIS characteristics (MRC)
DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS249.0 VOLTS PER MIL /0.001 INCH/FLIS characteristics (MRC)
Staying inside the regulation — routes from candidate to approved
Codification and qualification say who vouches for a part — they are not installation eligibility. Under EASA Part-21, eligibility flows from the approved design (type design / IPC) or an approved change; under Part-145, acceptance needs an EASA Form 1 or, for genuine standard parts, conformity traceable to the officially recognised standard (145.A.42).
- Classify the part. Is it a GENUINE standard part? If the IPC/CMM references only a public specification (AN/MS/NAS/SAE-AS/ISO/EN) with no OEM source-control drawing, buy at source with conformity traceable to that standard.
- Check for an approved alternate. The IPC/CMM/vendor list may already carry an alternate part number or vendor code — an already-approved alternate needs no new approval.
- Ask the design approval holder. Request the source-control data, written equivalence, or addition of the alternative source to the approved data. Document a refusal.
- Raise a design change. Via a Part-21J DOA (or EASA/ADOA): a 21.A.95 minor change adding the alternate to the approved data, backed by an identicality/equivalence file — dimensions, material, class, load rating, lubricant/seal, corrosion protection, acceptance criteria. Critical applications escalate to major change/STC.
- FAA-PMA / BASA path. Where the product is also FAA-certificated: PMA parts reach EASA aircraft under the BASA/TIP (non-critical directly; critical via EASA-validated STC).
- Production, release, traceability. Approved parts are produced under a POA, released on an EASA Form 1 (marked EPA where applicable), with EN/AS 9120-grade traceability into Part-145/CAMO acceptance.
Stage 1(a): we assemble the equivalence/identicality starter file — the cited evidence this graph holds, shaped for your DOA or compliance department to take forward. See pricing.
Regulatory explainer, not legal advice: paragraph numbers, derogations and the BASA/TIP revision change — verify against the current consolidated Regulation (EU) 748/2012, the EASA Easy Access Rules and the current TIP, and engage your DOA and competent authority early.