A51G20551-11 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

A51G20551-11: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, grip_length: 0.687 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN, thread_length: 0.426 INCHES MAXIMUM IN, fastener_length: 1.113 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-004-2985, 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

A51G20551-11

NSN: 5305-00-004-2985
FSC: 5305 — Screws
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)

SPECIFICATIONS

material	TITANIUM ALLOY OVERALL
grip_length	0.687 INCHES NOMINAL IN
thread_class	3A A
grip_diameter	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length	0.426 INCHES MAXIMUM IN
fastener_length	1.113 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
internal_drive_style	HIGH-TORQUE
nominal_thread_diameter	0.250 INCHES IN
thread_quantity_per_inch	28
thread_series_designator	UNF
NSN	5305-00-004-2985

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 1.113 INCHES NOMINAL IN

•

THREAD LENGTH: 0.426 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

THREAD DIRECTION: RIGHT-HAND

•

GRIP LENGTH: 0.687 INCHES NOMINAL IN

•

GRIP DIAMETER: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN

•

INTERNAL DRIVE STYLE: HIGH-TORQUE

•

THREAD CLASS: 3A A

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	1.113 INCHES NOMINAL IN
THREAD LENGTH	0.426 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.250 INCHES IN
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.687 INCHES NOMINAL IN
GRIP DIAMETER	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
INTERNAL DRIVE STYLE	HIGH-TORQUE
THREAD CLASS	3A A
THREAD QUANTITY PER INCH	28
MATERIAL	TITANIUM ALLOY OVERALL

OTHER ITEMS IN FSC 5305 — Screws

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

5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753

SUBSTITUTES & CROSS-REFERENCES 1

A51G20551-13Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 A51G20551-11?

A51G20551-11 is a SCREW,CLOSE TOLERANCE.

What parts can replace A51G20551-11?

There is 1 known substitute for A51G20551-11: A51G20551-13. Substitute compatibility should be verified for your specific system.

What is the NSN for A51G20551-11?

A51G20551-11 is cataloged in the U.S. Government catalog under NSN 5305-00-004-2985. This indicates validated use in U.S. government and defense supply chains.

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