Z8576-048K — NUT,SELF-LOCKING,CASTELLATED,HEX

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

Z8576-048K: NUT,SELF-LOCKING,CASTELLATED,HEX.

NUT,SELF-LOCKING,CASTELLATED,HEX. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: CASTELLATED, HEXAGON, nut_height: 0.315 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN, thread_class: 3BG, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), locking_feature: FREE-RUNNING ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-488-4337, 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

Z8576-048K

NSN: 5310-00-488-4337
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	CASTELLATED, HEXAGON
nut_height	0.315 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
thread_class	3BG
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	FREE-RUNNING ALL METAL DESIGN
thread_direction	RIGHT-HAND
width_across_flats	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_size	0.250 INCHES IN
bearing_surface_type	CHAMFERED
thread_quantity_per_inch	28
material_document_and_classification	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN	5310-00-488-4337

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

LOCKING FEATURE: FREE-RUNNING ALL METAL DESIGN

•

NUT HEIGHT: 0.315 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN

•

NUT STYLE: CASTELLATED, HEXAGON

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
LOCKING FEATURE	FREE-RUNNING ALL METAL DESIGN
NUT HEIGHT	0.315 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
NUT STYLE	CASTELLATED, HEXAGON
THREAD CLASS	3BG
THREAD QUANTITY PER INCH	28

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

536775Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is Z8576-048K?

Z8576-048K is a NUT,SELF-LOCKING,CASTELLATED,HEX.

What parts can replace Z8576-048K?

There is 1 known substitute for Z8576-048K: 536775. Substitute compatibility should be verified for your specific system.

What is the NSN for Z8576-048K?

Z8576-048K is cataloged in the U.S. Government catalog under NSN 5310-00-488-4337. This indicates validated use in U.S. government and defense supply chains.

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