83673-6L — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

83673-6L: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: SPLINE DRIVE, lubrication: DRY FILM LUBRICANT, temp_rating: 900.0 FAHRENHEIT MAXIMUM DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-01-351-2861, 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

83673-6L

NSN: 5310-01-351-2861
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	SPLINE DRIVE
lubrication	DRY FILM LUBRICANT
temp_rating	900.0 FAHRENHEIT MAXIMUM DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
overall_height	0.405 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
washer_thickness	0.045 INCHES MINIMUM IN
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.375 INCHES IN
NSN	5310-01-351-2861

COMPONENT DIAGRAM

KEY FEATURES

•

LUBRICATION: DRY FILM LUBRICANT

•

WASHER OUTSIDE DIAMETER: 0.659 INCHES MINIMUM AND 0.669 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 900.0 FAHRENHEIT MAXIMUM DEGF

•

WASHER THICKNESS: 0.045 INCHES MINIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

LUBRICATION	DRY FILM LUBRICANT
OVERALL HEIGHT	0.405 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.659 INCHES MINIMUM AND 0.669 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	900.0 FAHRENHEIT MAXIMUM DEGF
WASHER THICKNESS	0.045 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.375 INCHES 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

SP52988-6DLSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

03A103-6LSame NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

VN3201BE064Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 83673-6L?

83673-6L is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 83673-6L?

There are 3 known substitutes for 83673-6L: SP52988-6DL, 03A103-6L, VN3201BE064. Substitute compatibility should be verified for your specific system.

What is the NSN for 83673-6L?

83673-6L is cataloged in the U.S. Government catalog under NSN 5310-01-351-2861. This indicates validated use in U.S. government and defense supply chains.

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83673-6L — NUT,SELF-LOCKING,EXTENDED WASHER

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