Consumables & expendables · Spec-Crosswalk

INSULATOR,STANDOFF

Stock number · interchangeable / substitutable per the NSN catalogue (FLIS I&S) — every member CONFIRMED

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Part number2 approved sources

You are here · Stock number5970-00-117-5258

Specificationnone cited

Approved sources and substitutes

Every maker's item codified on this stock number, with the catalogue's order of use.

1408 ADVANCED TECHNICAL CERAMICS COMPANY

CONFIRMED

INSULATOR,STANDOFF

NSN 5970-00-117-5258

OVERALL WIDTH: 1.000 INCHES NOMINAL THREAD LENGTH: 0.375 INCHES NOMINAL OVERALL LENGTH: 1.000 INCHES NOMINAL DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS: 249.0 VOLTS PER MIL /0.001 INCH/

1798-1162P1 RAYTHEON COMPANY

CONFIRMED

INSULATOR,STANDOFF

NSN 5970-00-117-5256

OVERALL WIDTH: 1.000 INCHES NOMINAL OVERALL LENGTH: 1.000 INCHES NOMINAL MOUNTING BOLT CIRCLE DIAMETER: 0.375 INCHES NOMINAL SCREW THREAD DIAMETER AND LOCATION: 0.164 ELECTRICAL TERMINATION INCHES NOMINAL

Stated characteristics

The codification record's own dimensions and material statements — official, and public by nature.

IDENTIFICATION CODE COLORWHITEFLIS characteristics (MRC)

THREAD LENGTH0.375 INCHES NOMINALFLIS characteristics (MRC)

OVERALL LENGTH1.000 INCHES NOMINALFLIS characteristics (MRC)

OVERALL HEIGHT1.000 INCHES NOMINALFLIS characteristics (MRC)

OVERALL WIDTH1.000 INCHES NOMINALFLIS characteristics (MRC)

MOUNTING BOLT CIRCLE DIAMETER0.530 INCHES NOMINALFLIS characteristics (MRC)

THREAD LOCATIONMOUNTING FACILITY AND ELECTRICAL TERMINATIONFLIS characteristics (MRC)

MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE(S)FLIS characteristics (MRC)

FIRST MOUNTING HOLE SPACING0.187 INCHES NOMINALFLIS characteristics (MRC)

SCREW THREAD QUANTITY PER INCH AND LOCATION32 ELECTRICAL TERMINATION AND 32 MOUNTING FACILITYFLIS characteristics (MRC)

SCREW THREAD DIAMETER AND LOCATION0.164 ELECTRICAL TERMINATION INCHES NOMINAL AND 0.164 MOUNTING FACILITY INCHES NOMINALFLIS characteristics (MRC)

SECOND MOUNTING HOLE SPACING0.374 INCHES NOMINALFLIS characteristics (MRC)

THREAD CLASS AND LOCATION2B ELECTRICAL TERMINATION AND 2B MOUNTING FACILITYFLIS characteristics (MRC)

DISTANCE FROM CENTER TO EDGE0.500 INCHES NOMINAL FIRST · 0.500 INCHES NOMINAL SECONDFLIS characteristics (MRC)

STYLE DESIGNATORPILLARFLIS characteristics (MRC)

DIELECTRIC MATERIAL VOLTAGE RATING PER UNIT THICKNESS249.0 VOLTS PER MIL /0.001 INCH/FLIS characteristics (MRC)

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The monthly allowance for this address is used — the pattern reads as catalogue work, not a line to settle.

Whole-catalogue work is what Stage 1(a) is for: every line human-checked against the cited evidence, discrepancies annotated, back inside 24 hours. Free searching stays free — this gate only catches bulk pulls.

Request a Stage 1(a) dossier Triage the whole list free

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.

Source: DLA Logistics Information Services (FLIS) · cycle 2026-0 · official codification

This crosswalk identifies candidate equivalents with cited evidence. It is not an airworthiness approval. Substitution decisions remain subject to your organisation’s procurement and engineering approval process and the governing maintenance data (AMM/CMM/SRM/CML/OMAT).