5548129 — THUMBSCREW

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

5548129: THUMBSCREW.

The THUMBSCREW is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061 OVERALL, head_style: KNURLED NO. 1, head_height: 0.260 INCHES NOMINAL IN, head_diameter: 3.620 INCHES NOMINAL IN, fastener_length: 5.120 INCHES NOMINAL IN, special_features: INTERNAL CONCENTRIC HOLE 4.500 IN.LG; DIA.

1.625 IN.,COUNTERBORE .880 IN.LG. DIA. 1.000,NPT 1/2 IN.

IN. This part is cataloged in the U.S. Government catalog under NSN 5305-01-353-6878, 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

5548129

NSN: 5305-01-353-6878
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)

SPECIFICATIONS

material	ALUMINUM ALLOY 6061 OVERALL
head_style	KNURLED NO. 1
head_height	0.260 INCHES NOMINAL IN
head_diameter	3.620 INCHES NOMINAL IN
fastener_length	5.120 INCHES NOMINAL IN
special_features	INTERNAL CONCENTRIC HOLE 4.500 IN.LG; DIA. 1.625 IN.,COUNTERBORE .880 IN.LG. DIA. 1.000,NPT 1/2 IN. IN
thread_direction	RIGHT-HAND
surface_treatment	DICHROMATE OVERALL
thread_series_designator	BUTTRESS
nonstandard_thread_pitch_diameter	+2.2250 TO 2.5050 INCHES IN
material_document_and_classification	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN	5305-01-353-6878

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.260 INCHES NOMINAL IN

•

FASTENER LENGTH: 5.120 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

HEAD STYLE: KNURLED NO. 1

•

THREAD DIRECTION: RIGHT-HAND

•

NONSTANDARD THREAD PITCH DIAMETER: +2.2250 TO 2.5050 INCHES IN

•

COLOR: BLACK OVERALL

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.260 INCHES NOMINAL IN
FASTENER LENGTH	5.120 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE	KNURLED NO. 1
THREAD DIRECTION	RIGHT-HAND
NONSTANDARD THREAD PITCH DIAMETER	+2.2250 TO 2.5050 INCHES IN
COLOR	BLACK OVERALL
SPECIAL FEATURES	INTERNAL CONCENTRIC HOLE 4.500 IN.LG; DIA. 1.625 IN.,COUNTERBORE .880 IN.LG. DIA. 1.000,NPT 1/2 IN. IN
SURFACE TREATMENT	DICHROMATE OVERALL
MATERIAL	ALUMINUM ALLOY 6061 OVERALL

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

No substitute or cross-reference records for this part.

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 5548129?

5548129 is a THUMBSCREW.

What is the NSN for 5548129?

5548129 is cataloged in the U.S. Government catalog under NSN 5305-01-353-6878. This indicates validated use in U.S. government and defense supply chains.

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5548129 — THUMBSCREW

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