B1821BH044F975N — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

B1821BH044F975N: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.375 INCHES NOMINAL IN, fastener_length: 9.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-429-9149, 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

B1821BH044F975N

NSN: 5305-01-429-9149
FSC: 5305 — Screws
CAGE: 80204 — AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED DBA AMERICAN NATIONAL STANDARDS INSTITUTE (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	HEXAGON
head_height	0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
thread_class	2A A
thread_length	1.375 INCHES NOMINAL IN
fastener_length	9.750 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
surface_treatment	ZINC AND CHROMATE OVERALL
width_between_flats	0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
nominal_thread_diameter	0.438 INCHES IN
thread_quantity_per_inch	20
thread_series_designator	UNF
NSN	5305-01-429-9149

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN

•

FASTENER LENGTH: 9.750 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 1.375 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A354, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.438 INCHES IN

•

HEAD STYLE: HEXAGON

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
FASTENER LENGTH	9.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	ASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	1.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A354, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.438 INCHES IN
HEAD STYLE	HEXAGON
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
SURFACE TREATMENT	ZINC AND CHROMATE 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 3

5305PL0648308Reference document

Same NSN cross-reference

Reference document — Informative reference only

ASME B18.2.1Reference document

Same NSN cross-reference

Reference document — Secondary reference

5305014299149Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is B1821BH044F975N?

B1821BH044F975N is a SCREW,CAP,HEXAGON HEAD.

What parts can replace B1821BH044F975N?

There are 3 known substitutes for B1821BH044F975N: 5305PL0648308, ASME B18.2.1, 5305014299149. Substitute compatibility should be verified for your specific system.

What is the NSN for B1821BH044F975N?

B1821BH044F975N is cataloged in the U.S. Government catalog under NSN 5305-01-429-9149. This indicates validated use in U.S. government and defense supply chains.

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