42FW-624 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

42FW-624: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 8620 OR STEEL COMP 4037 OR STEEL COMP 8740 OVERALL, nut_style: DOUBLE HEXAGON, lubrication: WAX, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.458 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-685-6779, 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

42FW-624

NSN: 5310-00-685-6779
NIINs: 006856779, 011819340, 013788179
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	STEEL COMP 8620 OR STEEL COMP 4037 OR STEEL COMP 8740 OVERALL
nut_style	DOUBLE HEXAGON
lubrication	WAX
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.458 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
hardness_rating	38.0 ROCKWELL C NOMINAL
locking_feature	FREE-RUNNING ALL METAL DESIGN
special_features	SAFETY FLIGHT
thread_direction	RIGHT-HAND
washer_thickness	0.103 INCHES MINIMUM AND 0.113 INCHES MAXIMUM IN
surface_treatment	CADMIUM OVERALL
NSN	5310-00-685-6779

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.687 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF

•

WASHER THICKNESS: 0.099 INCHES NOMINAL IN

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.455 INCHES MINIMUM AND 0.470 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.687 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	450.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS	0.099 INCHES NOMINAL IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN

SUBSTITUTES & CROSS-REFERENCES 7

ZEB1845-064Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

106C072Reference document

Same NSN cross-reference

Reference document — Secondary reference

EB064Reference document

Same NSN cross-reference

Reference document — Secondary reference

FAC1421-624Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

A63-173Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

6854931Reference document

Same NSN cross-reference

Reference document — Secondary reference

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 42FW-624?

42FW-624 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 42FW-624?

There are 7 known substitutes for 42FW-624: ZEB1845-064, 106C072, EB064 and 4 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 42FW-624?

42FW-624 is cataloged in the U.S. Government catalog under NSN 5310-00-685-6779. This indicates validated use in U.S. government and defense supply chains.

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42FW-624 — NUT,SELF-LOCKING,EXTENDED WASHER

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