021-12681 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

021-12681: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: HEXAGON, nut_height: 0.833 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: MATERIAL SPEC IS ASTM-B98/B99. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-498-5079, 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

021-12681

NSN: 5310-01-498-5079
FSC: 5310 — Nuts and Washers
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)

SPECIFICATIONS

material	COPPER ALLOY OVERALL
nut_style	HEXAGON
nut_height	0.833 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
special_features	MATERIAL SPEC IS ASTM-B98/B99
thread_direction	RIGHT-HAND
width_across_flats	1.394 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN
nominal_thread_size	0.8755 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
end_item_identification	A/C
thread_quantity_per_inch	9
NSN	5310-01-498-5079

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 1.394 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.8755 INCHES IN

•

NUT HEIGHT: 0.833 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN

•

NUT STYLE: HEXAGON

•

THREAD CLASS: 2B

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	1.394 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.8755 INCHES IN
NUT HEIGHT	0.833 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
SPECIAL FEATURES	MATERIAL SPEC IS ASTM-B98/B99
NUT STYLE	HEXAGON
THREAD CLASS	2B
END ITEM IDENTIFICATION	A/C
THREAD QUANTITY PER INCH	9

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

377-03092-000 ITEM 22Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

Ready to buy 021-12681?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is 021-12681?

021-12681 is a NUT,PLAIN,HEXAGON.

What parts can replace 021-12681?

There is 1 known substitute for 021-12681: 377-03092-000 ITEM 22. Substitute compatibility should be verified for your specific system.

What is the NSN for 021-12681?

021-12681 is cataloged in the U.S. Government catalog under NSN 5310-01-498-5079. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

021-12681 — NUT,PLAIN,HEXAGON

Request a Quote — 021-12681