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90268A320 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90268A320: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include nut_length: 0.750 INCHES NOMINAL IN, special_features: NUT,COUPLING; EXTENSION NUT; OVERALL WIDTH 0.375; MATERIAL 18-8 STAINLESS STEEL OVERALL, thread_direction: RIGHT-HAND, nominal_thread_size: 0.312 INCHES IN, end_item_identification: 4920-01-382-3607; W/S SOT EQUIPMENT (SE),B-2 BOMBER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-467-9539, 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
90268A320
NSN: 5310-01-467-9539
FSC: 5310 — Nuts and Washers
CAGE: 06DM5 — INFINITY FABRICATION, INC. (USA)
SPECIFICATIONS
nut_length0.750 INCHES NOMINAL IN
special_featuresNUT,COUPLING; EXTENSION NUT; OVERALL WIDTH 0.375; MATERIAL 18-8 STAINLESS STEEL OVERALL
thread_directionRIGHT-HAND
nominal_thread_size0.312 INCHES IN
end_item_identification4920-01-382-3607; W/S SOT EQUIPMENT (SE),B-2 BOMBER
NSN5310-01-467-9539
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90268A320 · 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
•
NUT LENGTH: 0.750 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
TECHNICAL CHARACTERISTICS
NUT LENGTH0.750 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.312 INCHES IN
SPECIAL FEATURESNUT,COUPLING; EXTENSION NUT; OVERALL WIDTH 0.375; MATERIAL 18-8 STAINLESS STEEL OVERALL
END ITEM IDENTIFICATION4920-01-382-3607; W/S SOT EQUIPMENT (SE),B-2 BOMBER
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 90268A320?
90268A320 is a NUT,SELF-LOCKING,EXTENDED WASHER.
What is the NSN for 90268A320?
90268A320 is cataloged in the U.S. Government catalog under NSN 5310-01-467-9539. 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.