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91641 — 91641

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

91641: 91641.

The 91641 is a the manufacturer industrial component. Key specifications include special_features: ITEM NAME TEXT IS RF ASSEMBLY, end_item_identification: 3515N(51190), HANDHELD RADIO TEST SET. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-517-5113, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO→ MRO_GENERAL→ 91641
NSN: 5310-00-517-5113
NIINs: 005175113, 015679271
FSC: 5310 — Nuts and Washers
CAGE: 89109 — GRAHAM PAIGE CORP (USA)
SPECIFICATIONS
special_featuresITEM NAME TEXT IS RF ASSEMBLY
end_item_identification3515N(51190), HANDHELD RADIO TEST SET
NSN5310-00-517-5113
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91641 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
THREAD PITCH DIAMETERS: +1.1959 TO 1.1999 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT HEIGHT: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 12
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.620 INCHES MINIMUM AND 1.630 INCHES MAXIMUM IN
THREAD SERIESUNF
THREAD PITCH DIAMETERS+1.1959 TO 1.1999 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.250 INCHES IN
NUT HEIGHT0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH12
MATERIALSTEEL OVERALL
BEARING SURFACE TYPEWASHER FACED
SUBSTITUTES & CROSS-REFERENCES 6
11023AReference document
Same NSN cross-reference
Reference document — Secondary reference
38053Reference document
Same NSN cross-reference
Reference document — Secondary reference
664424Reference document
Same NSN cross-reference
Reference document — Secondary reference
A175113Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
359456Reference document
Same NSN cross-reference
Reference document — Secondary reference
1277RReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91641?
91641 is a 91641. It is classified as a MRO (MRO_GENERAL).
What parts can replace 91641?
There are 6 known substitutes for 91641: 11023A, 38053, 664424 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 91641?
91641 is cataloged in the U.S. Government catalog under NSN 5310-00-517-5113. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.