938.07.68.402 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

938.07.68.402: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, lubrication: SOLUBLE LUBRICANT, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNJC. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-878-3291, 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

938.07.68.402

NSN: 5310-00-878-3291
FSC: 5310 — Nuts and Washers
CAGE: S4080 — PILATUS AIRCRAFT LTD (CHE)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	HEXAGON
lubrication	SOLUBLE LUBRICANT
temp_rating	800.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNJC
overall_height	0.115 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.010 INCHES MINIMUM IN
surface_treatment	SILVER OVERALL
width_across_flats	0.181 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
NSN	5310-00-878-3291

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: SOLUBLE LUBRICANT

•

WASHER OUTSIDE DIAMETER: 0.244 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.181 INCHES MINIMUM AND 0.190 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: UNJC

•

TEMP RATING: 800.0 FAHRENHEIT NOMINAL DEGF

•

WASHER THICKNESS: 0.010 INCHES MINIMUM IN

TECHNICAL CHARACTERISTICS

LUBRICATION	SOLUBLE LUBRICANT
OVERALL HEIGHT	0.115 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.244 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.181 INCHES MINIMUM AND 0.190 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	UNJC
TEMP RATING	800.0 FAHRENHEIT NOMINAL DEGF
WASHER THICKNESS	0.010 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND

SUBSTITUTES & CROSS-REFERENCES 8

10121786Reference document

Same NSN cross-reference

Reference document — Informative reference only

5310008783291Reference document

Same NSN cross-reference

Reference document — Informative reference only

MS21043-06Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

2523333Reference document

Same NSN cross-reference

Reference document — Secondary reference

H41L06Reference document

Same NSN cross-reference

Reference document — Secondary reference

T99C632Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Demilitarization required — critical (Q)

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FREQUENTLY ASKED QUESTIONS

What is 938.07.68.402?

938.07.68.402 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 938.07.68.402?

There are 8 known substitutes for 938.07.68.402: 10121786, 5310008783291, MS21043-06 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 938.07.68.402?

938.07.68.402 is cataloged in the U.S. Government catalog under NSN 5310-00-878-3291. This indicates validated use in U.S. government and defense supply chains.

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938.07.68.402 — NUT,SELF-LOCKING,EXTENDED WASHER

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