A4-3/8XUNC — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

A4-3/8XUNC: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT, thread_direction: RIGHT-HAND, nominal_thread_size: 4.375 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-441-7085, 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

A4-3/8XUNC

NSN: 5310-01-441-7085
FSC: 5310 — Nuts and Washers
CAGE: A236N — MACGREGOR SWEDEN AB (SWE)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON LOCKING INSERT
thread_class	2B
thread_series	UNIFIED NATIONAL COARSE (UNC)
locking_feature	PREVAILING TORQUE WITH NONMETALLIC INSERT
thread_direction	RIGHT-HAND
nominal_thread_size	4.375 INCHES IN
bearing_surface_type	CHAMFERED OR WASHER FACED
part_name_assigned_by_controlling_agency	NAVY SPECIAL PROJECT
NSN	5310-01-441-7085

COMPONENT DIAGRAM

KEY FEATURES

•

THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)

•

THREAD DIRECTION: RIGHT-HAND

•

NOMINAL THREAD SIZE: 4.375 INCHES IN

•

LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT

•

THREAD CLASS: 2B

•

MATERIAL: STEEL CORROSION RESISTING NUT

TECHNICAL CHARACTERISTICS

THREAD SERIES	UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTION	RIGHT-HAND
NOMINAL THREAD SIZE	4.375 INCHES IN
LOCKING FEATURE	PREVAILING TORQUE WITH NONMETALLIC INSERT
PART NAME ASSIGNED BY CONTROLLING AGENCY	NAVY SPECIAL PROJECT
THREAD CLASS	2B
MATERIAL	STEEL CORROSION RESISTING NUT
MATERIAL	PLASTIC POLYAMIDE NYLON LOCKING INSERT
BEARING SURFACE TYPE	CHAMFERED OR WASHER FACED

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

22-06691 ITEM 7Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

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 A4-3/8XUNC?

A4-3/8XUNC is a NUT,SELF-LOCKING,HEXAGON.

What parts can replace A4-3/8XUNC?

There is 1 known substitute for A4-3/8XUNC: 22-06691 ITEM 7. Substitute compatibility should be verified for your specific system.

What is the NSN for A4-3/8XUNC?

A4-3/8XUNC is cataloged in the U.S. Government catalog under NSN 5310-01-441-7085. This indicates validated use in U.S. government and defense supply chains.

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A4-3/8XUNC — NUT,SELF-LOCKING,HEXAGON

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