52C2278-064 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

52C2278-064: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP 1030 OVERALL, nut_style: HEXAGON, temp_rating: 500.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNF, overall_height: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-275-0704, 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

52C2278-064

NSN: 5310-00-275-0704
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	STEEL COMP 1030 OVERALL
nut_style	HEXAGON
temp_rating	500.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNF
overall_height	0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
locking_feature	FREE-RUNNING ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.100 INCHES NOMINAL IN
surface_treatment	CADMIUM OVERALL
width_across_flats	0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
nominal_thread_size	0.375 INCHES IN
NSN	5310-00-275-0704

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.648 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN

•

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

•

THREAD SERIES: UNF

•

TEMP RATING: 500.0 FAHRENHEIT NOMINAL DEGF

•

WASHER THICKNESS: 0.100 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.648 INCHES MINIMUM AND 0.663 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.553 INCHES MINIMUM AND 0.565 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNF
TEMP RATING	500.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS	0.100 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES IN

SUBSTITUTES & CROSS-REFERENCES 3

534D1Reference document

Same NSN cross-reference

Reference document — Secondary reference

52Z2278-064Reference document

Same NSN cross-reference

Reference document — Secondary reference

GN512BY6Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 52C2278-064?

52C2278-064 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 52C2278-064?

There are 3 known substitutes for 52C2278-064: 534D1, 52Z2278-064, GN512BY6. Substitute compatibility should be verified for your specific system.

What is the NSN for 52C2278-064?

52C2278-064 is cataloged in the U.S. Government catalog under NSN 5310-00-275-0704. This indicates validated use in U.S. government and defense supply chains.

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52C2278-064 — NUT,SELF-LOCKING,EXTENDED WASHER

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