10121979 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

10121979: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL, nut_style: HEXAGON, nut_height: 0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN, thread_series: UNIFIED NATIONAL COARSE (UNC), hardness_rating: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-023-2991, 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

10121979

NSN: 5310-01-023-2991
FSC: 5310 — Nuts and Washers
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)

SPECIFICATIONS

material	STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
nut_style	HEXAGON
nut_height	0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
thread_series	UNIFIED NATIONAL COARSE (UNC)
hardness_rating	28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
width_across_flats	0.302 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
nominal_thread_size	0.164 INCHES IN
bearing_surface_type	CHAMFERED
thread_pitch_diameters	+0.1457 TO 0.1476 INCHES IN
thread_quantity_per_inch	32
NSN	5310-01-023-2991

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.302 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM

•

THREAD PITCH DIAMETERS: +0.1457 TO 0.1476 INCHES IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.164 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.302 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING	28.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
THREAD PITCH DIAMETERS	+0.1457 TO 0.1476 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.164 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.224 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
NUT STYLE	HEXAGON

SUBSTITUTES & CROSS-REFERENCES 3

3009922Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

FIC832-1Reference document

Same NSN cross-reference

Reference document — Secondary reference

5310PL0135816Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 10121979?

10121979 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace 10121979?

There are 3 known substitutes for 10121979: 3009922, FIC832-1, 5310PL0135816. Substitute compatibility should be verified for your specific system.

What is the NSN for 10121979?

10121979 is cataloged in the U.S. Government catalog under NSN 5310-01-023-2991. This indicates validated use in U.S. government and defense supply chains.

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10121979 — NUT,SELF-LOCKING,HEXAGON

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