57A5A28-7 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

57A5A28-7: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING NUT, nut_style: HEXAGON, nut_height: 0.188 INCHES MAXIMUM IN, lubrication: SOLUBLE LUBRICANT, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-926-1835, 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

57A5A28-7

NSN: 5310-00-926-1835
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL CORROSION RESISTING NUT
nut_style	HEXAGON
nut_height	0.188 INCHES MAXIMUM IN
lubrication	SOLUBLE LUBRICANT
temp_rating	250.0 FAHRENHEIT MAXIMUM DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
countersink_angle	88.0 DEGREES MINIMUM NUT
surface_treatment	PASSIVATE OVERALL EXCEPT INSERT
width_across_flats	0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
NSN	5310-00-926-1835

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: SOLUBLE LUBRICANT

•

WIDTH ACROSS FLATS: 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN

•

BEARING SURFACE FINISH: 125.0 MICROINCHES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.190 INCHES IN

TECHNICAL CHARACTERISTICS

LUBRICATION	SOLUBLE LUBRICANT
WIDTH ACROSS FLATS	0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
BEARING SURFACE FINISH	125.0 MICROINCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	250.0 FAHRENHEIT MAXIMUM DEGF
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.190 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT	0.188 INCHES MAXIMUM IN

SUBSTITUTES & CROSS-REFERENCES 8

MS21083C3Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

5310PL2042865Reference document

Same NSN cross-reference

Reference document — Informative reference only

AN21083C3Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

HBV-F3-24-0001-15Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

79NTM02Reference document

Same NSN cross-reference

Reference document — Secondary reference

7053275Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 57A5A28-7?

57A5A28-7 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace 57A5A28-7?

There are 8 known substitutes for 57A5A28-7: MS21083C3, 5310PL2042865, AN21083C3 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 57A5A28-7?

57A5A28-7 is cataloged in the U.S. Government catalog under NSN 5310-00-926-1835. This indicates validated use in U.S. government and defense supply chains.

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