A554-34 — THUMBSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

A554-34: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: KNURLED NO. 2, head_height: 0.250 INCHES NOMINAL IN, point_style: FLAT, thread_class: 2A A, head_diameter: 0.437 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-830-2616, 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

A554-34

NSN: 5305-00-830-2616
FSC: 5305 — Screws
CAGE: 34228 — L3 TECHNOLOGIES, INC. DIV L3 KEO (USA)

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
head_style	KNURLED NO. 2
head_height	0.250 INCHES NOMINAL IN
point_style	FLAT
thread_class	2A A
head_diameter	0.437 INCHES NOMINAL IN
thread_length	0.109 INCHES MINIMUM IN
fastener_length	0.375 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
nominal_thread_diameter	0.138 INCHES IN
first_diameter_from_head	0.098 INCHES NOMINAL IN
thread_quantity_per_inch	32
NSN	5305-00-830-2616

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.250 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

THREAD LENGTH: 0.109 INCHES MINIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

FIRST DIAMETER FROM HEAD: 0.098 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.138 INCHES IN

•

HEAD STYLE: KNURLED NO. 2

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.250 INCHES NOMINAL IN
FASTENER LENGTH	0.375 INCHES NOMINAL IN
THREAD LENGTH	0.109 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
FIRST DIAMETER FROM HEAD	0.098 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.138 INCHES IN
HEAD STYLE	KNURLED NO. 2
THREAD DIRECTION	RIGHT-HAND
POINT STYLE	FLAT
DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER	0.266 INCHES NOMINAL IN

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

F554-135RCPC17Same 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 A554-34?

A554-34 is a THUMBSCREW.

What parts can replace A554-34?

There is 1 known substitute for A554-34: F554-135RCPC17. Substitute compatibility should be verified for your specific system.

What is the NSN for A554-34?

A554-34 is cataloged in the U.S. Government catalog under NSN 5305-00-830-2616. This indicates validated use in U.S. government and defense supply chains.

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