CA21037-4-6HS — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

CA21037-4-6HS: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OR STEEL COMP 8740 OVERALL, head_style: OVAL COUNTERSUNK, thread_class: 3A A, head_diameter: 0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN, thread_length: 0.567 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN, fastener_length: 1.237 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-149-1933, 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

CA21037-4-6HS

NSN: 5305-01-149-1933
FSC: 5305 — Screws
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
head_style	OVAL COUNTERSUNK
thread_class	3A A
head_diameter	0.430 INCHES MINIMUM AND 0.440 INCHES MAXIMUM IN
thread_length	0.567 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN
fastener_length	1.237 INCHES NOMINAL IN
special_features	FURNISHED WITH ONE SPRING,THREAD TO BE DOUBLE LEAD.
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
NSN	5305-01-149-1933

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.237 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.567 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: OVAL COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.141 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
FASTENER LENGTH	1.237 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.567 INCHES MINIMUM AND 0.706 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	OVAL COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	FURNISHED WITH ONE SPRING,THREAD TO BE DOUBLE LEAD.
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL

SUBSTITUTES & CROSS-REFERENCES 3

5305PL0884148Reference document

Same NSN cross-reference

Reference document — Informative reference only

C9537-4-6Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

5305PL1635689Reference document

Same NSN cross-reference

Reference document — Informative reference only

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is CA21037-4-6HS?

CA21037-4-6HS is a SCREW,CAP,SOCKET HEAD.

What parts can replace CA21037-4-6HS?

There are 3 known substitutes for CA21037-4-6HS: 5305PL0884148, C9537-4-6, 5305PL1635689. Substitute compatibility should be verified for your specific system.

What is the NSN for CA21037-4-6HS?

CA21037-4-6HS is cataloged in the U.S. Government catalog under NSN 5305-01-149-1933. This indicates validated use in U.S. government and defense supply chains.

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