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91045A031 — NUT,PLAIN,ASSEMBLED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91045A031: NUT,PLAIN,ASSEMBLED WASHER.

The NUT,PLAIN,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: FLAT, overall_height: 0.656 INCHES NOMINAL IN, special_features: MATERIAL IS STATED AS BLACK OXIDE HARDENED STEEL, thread_direction: RIGHT-HAND, surface_treatment: OXIDE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-510-9041, 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
91045A031
NSN: 5310-01-510-9041
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleFLAT
overall_height0.656 INCHES NOMINAL IN
special_featuresMATERIAL IS STATED AS BLACK OXIDE HARDENED STEEL
thread_directionRIGHT-HAND
surface_treatmentOXIDE OVERALL
end_item_identificationHEAVYWEIGHT T
thread_quantity_per_inch16
NSN5310-01-510-9041
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91045A031 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
SURFACE TREATMENT: OXIDE OVERALL
•
NUT STYLE: FLAT
•
THREAD QUANTITY PER INCH: 16
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.656 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SPECIAL FEATURESMATERIAL IS STATED AS BLACK OXIDE HARDENED STEEL
SURFACE TREATMENTOXIDE OVERALL
NUT STYLEFLAT
END ITEM IDENTIFICATIONHEAVYWEIGHT T
THREAD QUANTITY PER INCH16
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91045A031?
91045A031 is a NUT,PLAIN,ASSEMBLED WASHER.
What is the NSN for 91045A031?
91045A031 is cataloged in the U.S. Government catalog under NSN 5310-01-510-9041. 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.