H56351-12 — NUT,SELF-LOCKING,DOUBLE HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

H56351-12: NUT,SELF-LOCKING,DOUBLE HEXAGON.

NUT,SELF-LOCKING,DOUBLE HEXAGON. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, nut_height: 0.706 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-541-8768, 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

H56351-12

NSN: 5310-01-541-8768
FSC: 5310 — Nuts and Washers
CAGE: 15653 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)

SPECIFICATIONS

material	STEEL COMP 8740 OVERALL
nut_style	DOUBLE HEXAGON
nut_height	0.706 INCHES MAXIMUM IN
lubrication	DRY FILM LUBRICANT
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
width_across_flats	0.987 INCHES MINIMUM IN
nominal_thread_size	0.750 INCHES IN
end_item_identification	AH-64 APACHE HELICOPTER
thread_quantity_per_inch	16
NSN	5310-01-541-8768

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WIDTH ACROSS FLATS: 0.987 INCHES MINIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.750 INCHES IN

•

NUT HEIGHT: 0.706 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
WIDTH ACROSS FLATS	0.987 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS-QQ-P-416, TYPE II, CLASS 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.750 INCHES IN
NUT HEIGHT	0.706 INCHES MAXIMUM IN
SURFACE TREATMENT	CADMIUM OVERALL
NUT STYLE	DOUBLE HEXAGON

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

HS6137-9Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

H56351-9Reference document

Same NSN cross-reference

Reference document — Secondary reference

95855-9Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 H56351-12?

H56351-12 is a NUT,SELF-LOCKING,DOUBLE HEXAGON.

What parts can replace H56351-12?

There are 3 known substitutes for H56351-12: HS6137-9, H56351-9, 95855-9. Substitute compatibility should be verified for your specific system.

What is the NSN for H56351-12?

H56351-12 is cataloged in the U.S. Government catalog under NSN 5310-01-541-8768. This indicates validated use in U.S. government and defense supply chains.

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H56351-12 — NUT,SELF-LOCKING,DOUBLE HEXAGON

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