21078756 — SETSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

21078756: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, fastener_length: 0.875 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, end_item_identification: 2320-01-529-2251, TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2, nominal_thread_diameter: 0.438 INCHES IN, thread_quantity_per_inch: 20. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-547-7252, 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

21078756

NSN: 5305-01-547-7252
FSC: 5305 — Screws
CAGE: 89619 — MACK TRUCKS, INC. DBA MACUNGIE OPERATIONS DIV LEHIGH VALLEY OPERATIONS (USA)

SPECIFICATIONS

head_style	HEXAGON
fastener_length	0.875 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
end_item_identification	2320-01-529-2251, TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2
nominal_thread_diameter	0.438 INCHES IN
thread_quantity_per_inch	20
thread_series_designator	UNF
part_name_assigned_by_controlling_agency	SETSCREW, LOCKING HEX
NSN	5305-01-547-7252

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.875 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.438 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

•

THREAD QUANTITY PER INCH: 20

•

THREAD SERIES DESIGNATOR: UNF

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.875 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.438 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCY	SETSCREW, LOCKING HEX
END ITEM IDENTIFICATION	2320-01-529-2251, TRUCK, BOMB SERVICE; MRAP BUFFALO MK2A2
THREAD QUANTITY PER INCH	20
THREAD SERIES DESIGNATOR	UNF

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 3

7AX 264XReference document

Same NSN cross-reference

Reference document — Secondary reference

10025138Reference document

Same NSN cross-reference

Reference document — Secondary reference

551KC214Reference 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

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FREQUENTLY ASKED QUESTIONS

What is 21078756?

21078756 is a SETSCREW.

What parts can replace 21078756?

There are 3 known substitutes for 21078756: 7AX 264X, 10025138, 551KC214. Substitute compatibility should be verified for your specific system.

What is the NSN for 21078756?

21078756 is cataloged in the U.S. Government catalog under NSN 5305-01-547-7252. This indicates validated use in U.S. government and defense supply chains.

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