F1-0520660 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

F1-0520660: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.15 INCHES MINIMUM AND 0.27 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-723-4887, 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

F1-0520660

NSN: 5310-01-723-4887
FSC: 5310 — Nuts and Washers
CAGE: 880W5 — CERTIFIED STAINLESS SERVICE, INC. DBA WEST-MARK DIV WEST-MARK (USA)

SPECIFICATIONS

material	STEEL OVERALL
nut_style	HEXAGON
nut_height	0.15 INCHES MINIMUM AND 0.27 INCHES MAXIMUM IN
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
special_features	GRADE G (GRADE 8); MEDIUM CARBON STEEL; HEAT TREATED; 0.2500-20 BLACK ZINC.
thread_direction	RIGHT-HAND
surface_treatment	ZINC OVERALL
width_across_flats	0.45 INCHES MINIMUM AND 0.57 INCHES MAXIMUM IN
nominal_thread_size	0.2500 INCHES IN
bearing_surface_type	WASHER FACED
NSN	5310-01-723-4887

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.45 INCHES MINIMUM AND 0.57 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.2500 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

•

NUT HEIGHT: 0.15 INCHES MINIMUM AND 0.27 INCHES MAXIMUM IN

•

SURFACE TREATMENT: ZINC OVERALL

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.45 INCHES MINIMUM AND 0.57 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.2500 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.15 INCHES MINIMUM AND 0.27 INCHES MAXIMUM IN
SPECIAL FEATURES	GRADE G (GRADE 8); MEDIUM CARBON STEEL; HEAT TREATED; 0.2500-20 BLACK ZINC.
SURFACE TREATMENT	ZINC OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY	LOCK NUT, FLANGED
NUT STYLE	HEXAGON

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

F1-0520660 REV 0Reference document

Same NSN cross-reference

Reference document — Drawing number reference only

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 F1-0520660?

F1-0520660 is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace F1-0520660?

There is 1 known substitute for F1-0520660: F1-0520660 REV 0. Substitute compatibility should be verified for your specific system.

What is the NSN for F1-0520660?

F1-0520660 is cataloged in the U.S. Government catalog under NSN 5310-01-723-4887. This indicates validated use in U.S. government and defense supply chains.

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F1-0520660 — NUT,SELF-LOCKING,HEXAGON

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