4902273 — NUT,SELF-LOCKING,EXTENDED WASHER

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

4902273: NUT,SELF-LOCKING,EXTENDED WASHER.

NUT,SELF-LOCKING,EXTENDED WASHER. Key specifications include material: STEEL COMP E4340 OR STEEL COMP 8740 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.301 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-028-3295, 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

4902273

NSN: 5310-01-028-3295
FSC: 5310 — Nuts and Washers
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL COMP E4340 OR STEEL COMP 8740 OVERALL
nut_style	HEXAGON
thread_class	3B
thread_series	UNIFIED NATIONAL COARSE (UNC)
overall_height	0.301 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	TOP OF NUT COUNTERBORED 0.188 IN. DEEP BY 0.312 IN. DIA IN
thread_direction	RIGHT-HAND
washer_thickness	0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
countersink_angle	90.0 DEGREES NOMINAL NUT
surface_treatment	CADMIUM OVERALL
width_across_flats	0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
NSN	5310-01-028-3295

COMPONENT DIAGRAM

KEY FEATURES

•

WASHER OUTSIDE DIAMETER: 0.367 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN

•

WIDTH ACROSS FLATS: 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

WASHER THICKNESS: 0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.164 INCHES IN

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.301 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER	0.367 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
WIDTH ACROSS FLATS	0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
WASHER THICKNESS	0.027 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.164 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
SPECIAL FEATURES	TOP OF NUT COUNTERBORED 0.188 IN. DEEP BY 0.312 IN. DIA 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 1

LH8639-2Reference 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

Ready to buy 4902273?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is 4902273?

4902273 is a NUT,SELF-LOCKING,EXTENDED WASHER.

What parts can replace 4902273?

There is 1 known substitute for 4902273: LH8639-2. Substitute compatibility should be verified for your specific system.

What is the NSN for 4902273?

4902273 is cataloged in the U.S. Government catalog under NSN 5310-01-028-3295. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

4902273 — NUT,SELF-LOCKING,EXTENDED WASHER

Request a Quote — 4902273