231421-2 — NUT,PLAIN,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

231421-2: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNF, hardness_rating: 85.0 ROCKWELL C NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-391-2799, 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

231421-2

NSN: 5310-01-391-2799
FSC: 5310 — Nuts and Washers
CAGE: 72447 — DANA COMMERCIAL VEHICLE MANUFACTURING, LLC DBA DANA COMMERCIAL VEHICLE PRODUCTS (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	HEXAGON
nut_height	0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNF
hardness_rating	85.0 ROCKWELL C NOMINAL
thread_direction	RIGHT-HAND
countersink_angle	105.0 DEGREES NOMINAL NUT
width_across_flats	0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
nominal_thread_size	0.312 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
thread_quantity_per_inch	24
NSN	5310-01-391-2799

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN

•

THREAD SERIES: UNF

•

HARDNESS RATING: 85.0 ROCKWELL C NOMINAL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.312 INCHES IN

•

NUT HEIGHT: 0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN

•

COUNTERSINK ANGLE: 105.0 DEGREES NOMINAL NUT

•

NUT STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
THREAD SERIES	UNF
HARDNESS RATING	85.0 ROCKWELL C NOMINAL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.312 INCHES IN
NUT HEIGHT	0.258 INCHES MINIMUM AND 0.273 INCHES MAXIMUM IN
COUNTERSINK ANGLE	105.0 DEGREES NOMINAL NUT
NUT STYLE	HEXAGON
THREAD CLASS	2B
THREAD QUANTITY PER INCH	24

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

500371-2Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

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

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FREQUENTLY ASKED QUESTIONS

What is 231421-2?

231421-2 is a NUT,PLAIN,HEXAGON.

What parts can replace 231421-2?

There is 1 known substitute for 231421-2: 500371-2. Substitute compatibility should be verified for your specific system.

What is the NSN for 231421-2?

231421-2 is cataloged in the U.S. Government catalog under NSN 5310-01-391-2799. This indicates validated use in U.S. government and defense supply chains.

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231421-2 — NUT,PLAIN,HEXAGON

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