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AC-331332 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AC-331332: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HEXAGON, special_features: STAINLESS STEEL-1/4-20 FULL HTSLN-SPS/50FAF420;HEXAGON.TEMPERED,SLIT,STAINLESS STEEL,LOCK-NUT, thread_direction: RIGHT-HAND, nominal_thread_size: 0.250 INCHES IN, hole_thread_quantity_per_inch: 20. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-515-9908, 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
AC-331332
NSN: 5310-01-515-9908
FSC: 5310 — Nuts and Washers
CAGE: 75477 — FM AF, LLC DBA AMERICAN FAN COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHEXAGON
special_featuresSTAINLESS STEEL-1/4-20 FULL HTSLN-SPS/50FAF420;HEXAGON.TEMPERED,SLIT,STAINLESS STEEL,LOCK-NUT
thread_directionRIGHT-HAND
nominal_thread_size0.250 INCHES IN
hole_thread_quantity_per_inch20
NSN5310-01-515-9908
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AC-331332 · 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
•
HOLE THREAD QUANTITY PER INCH: 20
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
NUT STYLE: HEXAGON
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
HOLE THREAD QUANTITY PER INCH20
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SPECIAL FEATURESSTAINLESS STEEL-1/4-20 FULL HTSLN-SPS/50FAF420;HEXAGON.TEMPERED,SLIT,STAINLESS STEEL,LOCK-NUT
NUT STYLEHEXAGON
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
AC-331317Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 AC-331332?
AC-331332 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace AC-331332?
There is 1 known substitute for AC-331332: AC-331317. Substitute compatibility should be verified for your specific system.
What is the NSN for AC-331332?
AC-331332 is cataloged in the U.S. Government catalog under NSN 5310-01-515-9908. 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.