MS21043-6 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

MS21043-6: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 1137 OVERALL, nut_style: DOUBLE HEXAGON, temp_rating: 400.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.454 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-881-0943, 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

MS21043-6

NSN: 5310-00-881-0943
NIINs: 008810943, 009132736
FSC: 5310 — Nuts and Washers
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)

SPECIFICATIONS

material	STEEL COMP 1137 OVERALL
nut_style	DOUBLE HEXAGON
temp_rating	400.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.454 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
surface_treatment	CADMIUM OVERALL
width_across_flats	0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES IN
NSN	5310-00-881-0943

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: SOLUBLE LUBRICANT

•

WASHER OUTSIDE DIAMETER: 0.620 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE OR AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

PRECIOUS MATERIAL: SILVER

•

TEMP RATING: 800.0 FAHRENHEIT NOMINAL DEGF

TECHNICAL CHARACTERISTICS

LUBRICATION	SOLUBLE LUBRICANT
OVERALL HEIGHT	0.267 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.620 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-S-365 FED SPEC SINGLE TREATMENT RESPONSE OR AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIAL	SILVER
TEMP RATING	800.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS	0.030 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

SUBSTITUTES & CROSS-REFERENCES 4

1113-5460-02Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

NAS1291C6Reference document

Same NSN cross-reference

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

T99C624Reference document

Same NSN cross-reference

Reference document — Secondary reference

5310PL1326030Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 MS21043-6?

MS21043-6 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace MS21043-6?

There are 4 known substitutes for MS21043-6: 1113-5460-02, NAS1291C6, T99C624 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MS21043-6?

MS21043-6 is cataloged in the U.S. Government catalog under NSN 5310-00-881-0943. This indicates validated use in U.S. government and defense supply chains.

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MS21043-6 — NUT,SELF-LOCKING,EXTENDED WASHER

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