B229 REF NO 55 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

B229 REF NO 55: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, fastener_length: 0.375 INCHES NOMINAL IN, internal_drive_style: HEXAGON, nominal_thread_diameter: 0.250 INCHES IN, thread_quantity_per_inch: 20, thread_series_designator: UNIFIED NATIONAL COARSE (UNC). This part is cataloged in the U.S.

Government catalog under NSN 5305-01-438-3450, 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

B229 REF NO 55

NSN: 5305-01-438-3450
FSC: 5305 — Screws
CAGE: 15852 — W S DARLEY & CO (USA)

SPECIFICATIONS

material	STEEL OVERALL
fastener_length	0.375 INCHES NOMINAL IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.250 INCHES IN
thread_quantity_per_inch	20
thread_series_designator	UNIFIED NATIONAL COARSE (UNC)
material_document_and_classification	ASTM A167, 18-8SS ASSN STD 1ST MATERIAL RESPONSE OR ASTM A240, 18-8SS ASSN STD 2ND MATERIAL RESPONSE OVERALL
NSN	5305-01-438-3450

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A167, 18-8SS ASSN STD 1ST MATERIAL RESPONSE OR ASTM A240, 18-8SS ASSN STD 2ND MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

INTERNAL DRIVE STYLE: HEXAGON

•

THREAD QUANTITY PER INCH: 20

•

MATERIAL: STEEL OVERALL

•

THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.375 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	ASTM A167, 18-8SS ASSN STD 1ST MATERIAL RESPONSE OR ASTM A240, 18-8SS ASSN STD 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
INTERNAL DRIVE STYLE	HEXAGON
THREAD QUANTITY PER INCH	20
MATERIAL	STEEL OVERALL
THREAD SERIES DESIGNATOR	UNIFIED NATIONAL COARSE (UNC)

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 1

Z10100820033Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

Ready to buy B229 REF NO 55?

Compare prices from verified sellers on eBay

Buy on eBay →

As an eBay Partner, PartsTable may earn a commission. Your price is not affected.

FREQUENTLY ASKED QUESTIONS

What is B229 REF NO 55?

B229 REF NO 55 is a SCREW,CAP,SOCKET HEAD.

What parts can replace B229 REF NO 55?

There is 1 known substitute for B229 REF NO 55: Z10100820033. Substitute compatibility should be verified for your specific system.

What is the NSN for B229 REF NO 55?

B229 REF NO 55 is cataloged in the U.S. Government catalog under NSN 5305-01-438-3450. This indicates validated use in U.S. government and defense supply chains.

Community Feedback

B229 REF NO 55 — SCREW,CAP,SOCKET HEAD

Request a Quote — B229 REF NO 55