23040890 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

23040890: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL NUT, nut_style: HEXAGON, nut_height: 0.937 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UN, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-478-0548, 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

23040890

NSN: 5310-00-478-0548
FSC: 5310 — Nuts and Washers
CAGE: 73342 — ALLISON TRANSMISSION INC DBA ALLISON TRANSMISSION, INC (USA)

SPECIFICATIONS

material	STEEL NUT
nut_style	HEXAGON
nut_height	0.937 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN
thread_class	3B
thread_series	UN
hardness_rating	30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
width_across_flats	2.715 INCHES MINIMUM AND 2.762 INCHES MAXIMUM IN
nominal_thread_size	2.000 INCHES IN
bearing_surface_type	CHAMFERED
thread_quantity_per_inch	16
NSN	5310-00-478-0548

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 2.715 INCHES MINIMUM AND 2.762 INCHES MAXIMUM IN

•

THREAD SERIES: UN

•

HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 2.000 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT

•

NUT HEIGHT: 0.937 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN

•

NUT STYLE: HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	2.715 INCHES MINIMUM AND 2.762 INCHES MAXIMUM IN
THREAD SERIES	UN
HARDNESS RATING	30.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	2.000 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	0.937 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN
NUT STYLE	HEXAGON
THREAD CLASS	3B
THREAD QUANTITY PER INCH	16

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 3

16TX704Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6771144Reference document

Same NSN cross-reference

Reference document — Secondary reference

S-3324Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 23040890?

23040890 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace 23040890?

There are 3 known substitutes for 23040890: 16TX704, 6771144, S-3324. Substitute compatibility should be verified for your specific system.

What is the NSN for 23040890?

23040890 is cataloged in the U.S. Government catalog under NSN 5310-00-478-0548. This indicates validated use in U.S. government and defense supply chains.

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23040890 — NUT,SELF-LOCKING,HEXAGON

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