642AS0736-4 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

642AS0736-4: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: NICKEL ALLOY 718 OVERALL, nut_style: DOUBLE HEXAGON, temp_rating: 600.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.363 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-078-9435, 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

642AS0736-4

NSN: 5310-01-078-9435
FSC: 5310 — Nuts and Washers
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	NICKEL ALLOY 718 OVERALL
nut_style	DOUBLE HEXAGON
temp_rating	600.0 FAHRENHEIT MAXIMUM DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.363 INCHES MAXIMUM IN
hardness_rating	48.0 ROCKWELL C MAXIMUM
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	DYED BLUE COLOR NO. 15526 FED STD 595
thread_direction	RIGHT-HAND
washer_thickness	0.035 INCHES MINIMUM IN
precious_material	SILVER
NSN	5310-01-078-9435

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.491 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.267 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

PRECIOUS MATERIAL: SILVER

•

TEMP RATING: 600.0 FAHRENHEIT MAXIMUM DEGF

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.363 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.491 INCHES MINIMUM AND 0.532 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.267 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT THREADS
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
PRECIOUS MATERIAL	SILVER
TEMP RATING	600.0 FAHRENHEIT MAXIMUM DEGF
HARDNESS RATING	48.0 ROCKWELL C MAXIMUM
WASHER THICKNESS	0.035 INCHES MINIMUM IN

OTHER ITEMS IN FSC 5310 — Nuts and Washers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540

SUBSTITUTES & CROSS-REFERENCES 3

H50737-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

H50737-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

77658-524Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 642AS0736-4?

642AS0736-4 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 642AS0736-4?

There are 3 known substitutes for 642AS0736-4: H50737-5, H50737-4, 77658-524. Substitute compatibility should be verified for your specific system.

What is the NSN for 642AS0736-4?

642AS0736-4 is cataloged in the U.S. Government catalog under NSN 5310-01-078-9435. This indicates validated use in U.S. government and defense supply chains.

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642AS0736-4 — NUT,SELF-LOCKING,EXTENDED WASHER

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