90640A131 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

90640A131: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.453 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-477-8639, 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

90640A131

NSN: 5310-01-477-8639
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_style	HEXAGON
nut_height	0.453 INCHES NOMINAL IN
temp_rating	250.0 FAHRENHEIT NOMINAL DEGF
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
surface_treatment	ZINC OVERALL EXCEPT INSERT
width_across_flats	0.562 INCHES NOMINAL IN
nominal_thread_size	0.375 INCHES IN
bearing_surface_type	CHAMFERED
NSN	5310-01-477-8639

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.375 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT

•

NUT HEIGHT: 0.453 INCHES NOMINAL IN

•

SURFACE TREATMENT: ZINC OVERALL EXCEPT INSERT

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.562 INCHES NOMINAL IN
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
TEMP RATING	250.0 FAHRENHEIT NOMINAL DEGF
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	0.453 INCHES NOMINAL IN
SURFACE TREATMENT	ZINC OVERALL EXCEPT INSERT
NUT STYLE	HEXAGON
THREAD CLASS	2B

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 1

82-3029-003Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

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 90640A131?

90640A131 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace 90640A131?

There is 1 known substitute for 90640A131: 82-3029-003. Substitute compatibility should be verified for your specific system.

What is the NSN for 90640A131?

90640A131 is cataloged in the U.S. Government catalog under NSN 5310-01-477-8639. This indicates validated use in U.S. government and defense supply chains.

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90640A131 — NUT,SELF-LOCKING,HEXAGON

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