Z7764-4 — NUT,SELF-LOCKING,SLOTTED,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

Z7764-4: NUT,SELF-LOCKING,SLOTTED,HEXAGON.

NUT,SELF-LOCKING,SLOTTED,HEXAGON. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN, temp_rating: 800.0 FAHRENHEIT NOMINAL DEGF, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF). This part is cataloged in the U.S.

Government catalog under NSN 5310-00-047-2391, 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

Z7764-4

NSN: 5310-00-047-2391
FSC: 5310 — Nuts and Washers
CAGE: 72962 — HARVARD INDUSTRIES INC (USA)

SPECIFICATIONS

material	IRON ALLOY 660 OVERALL
nut_style	SLOTTED, HEXAGON
nut_height	0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
temp_rating	800.0 FAHRENHEIT NOMINAL DEGF
thread_class	3B
thread_series	UNIFIED NATIONAL JOINT FINE (UNJF)
locking_feature	PREVAILING TORQUE ALL METAL DESIGN
thread_direction	RIGHT-HAND
surface_treatment	SILVER OVERALL
width_across_flats	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
nominal_thread_size	0.250 INCHES IN
bearing_surface_type	WASHER FACED
NSN	5310-00-047-2391

COMPONENT DIAGRAM

KEY FEATURES

•

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

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)

•

TEMP RATING: 800.0 FAHRENHEIT NOMINAL DEGF

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5725 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 0.250 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	AMS 2411 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES	UNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING	800.0 FAHRENHEIT NOMINAL DEGF
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5725 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	0.250 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT	0.266 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
SURFACE TREATMENT	SILVER OVERALL

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 2

MS21225-4Reference document

Same NSN cross-reference

Reference document — Secondary reference

5310PL2206251Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is Z7764-4?

Z7764-4 is a NUT,SELF-LOCKING,SLOTTED,HEXAGON.

What parts can replace Z7764-4?

There are 2 known substitutes for Z7764-4: MS21225-4, 5310PL2206251. Substitute compatibility should be verified for your specific system.

What is the NSN for Z7764-4?

Z7764-4 is cataloged in the U.S. Government catalog under NSN 5310-00-047-2391. This indicates validated use in U.S. government and defense supply chains.

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