Z7637-6 — NUT,SELF-LOCKING,CASTELLATED,HEX

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

Z7637-6: NUT,SELF-LOCKING,CASTELLATED,HEX.

NUT,SELF-LOCKING,CASTELLATED,HEX. Key specifications include material: STEEL OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.270 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-147-6085, 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

Z7637-6

NSN: 5310-01-147-6085
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	CASTELLATED, HEXAGON
nut_height	0.270 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN
thread_class	3B
thread_series	UNF
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	DYED PURPLE FOR IDENTIFICATION
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
width_across_flats	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES IN
bearing_surface_type	CHAMFERED
NSN	5310-01-147-6085

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN

•

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

•

THREAD SERIES: UNF

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.375 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

•

NUT HEIGHT: 0.270 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNF
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-N-25027 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.270 INCHES MINIMUM AND 0.282 INCHES MAXIMUM IN
SPECIAL FEATURES	DYED PURPLE FOR IDENTIFICATION
SURFACE TREATMENT	CADMIUM OVERALL

SUBSTITUTES & CROSS-REFERENCES 2

5310PL0648801Reference document

Same NSN cross-reference

Reference document — Informative reference only

C330-624-17Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is Z7637-6?

Z7637-6 is a NUT,SELF-LOCKING,CASTELLATED,HEX.

What parts can replace Z7637-6?

There are 2 known substitutes for Z7637-6: 5310PL0648801, C330-624-17. Substitute compatibility should be verified for your specific system.

What is the NSN for Z7637-6?

Z7637-6 is cataloged in the U.S. Government catalog under NSN 5310-01-147-6085. This indicates validated use in U.S. government and defense supply chains.

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Z7637-6 — NUT,SELF-LOCKING,CASTELLATED,HEX

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