CA21089-4-8HS — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

CA21089-4-8HS: 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, thread_class: 3A A, thread_length: 0.441 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD, fastener_length: 1.282 INCHES MINIMUM AND 1.292 INCHES MAXIMUM IN, special_features: DOUBLE LEAD THD. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-087-8792, 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

CA21089-4-8HS

NSN: 5305-01-087-8792
FSC: 5305 — Screws
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 4140 OR STEEL COMP 8740 OVERALL
thread_class	3A A
thread_length	0.441 INCHES MINIMUM AND 0.661 INCHES MAXIMUM IN
surface_finish	32.0 MICROINCHES BEARING SURFACE OF HEAD
fastener_length	1.282 INCHES MINIMUM AND 1.292 INCHES MAXIMUM IN
special_features	DOUBLE LEAD THD
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.250 INCHES IN
minimum_tensile_strength	180000 POUNDS PER SQUARE INCH LBS
NSN	5305-01-087-8792

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 32.0 MICROINCHES GRIP

•

WIDTH ACROSS FLATS: 0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN

•

FASTENER LENGTH: 1.282 INCHES MINIMUM AND 1.292 INCHES MAXIMUM IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.441 INCHES MINIMUM AND 0.661 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

TECHNICAL CHARACTERISTICS

SURFACE FINISH	32.0 MICROINCHES GRIP
SURFACE FINISH	32.0 MICROINCHES BEARING SURFACE OF HEAD
WIDTH ACROSS FLATS	0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
FASTENER LENGTH	1.282 INCHES MINIMUM AND 1.292 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.441 INCHES MINIMUM AND 0.661 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
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	DOUBLE LEAD THD

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

No substitute or cross-reference records for this part.

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 CA21089-4-8HS?

CA21089-4-8HS is a SCREW,CAP,SOCKET HEAD.

What is the NSN for CA21089-4-8HS?

CA21089-4-8HS is cataloged in the U.S. Government catalog under NSN 5305-01-087-8792. This indicates validated use in U.S. government and defense supply chains.

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CA21089-4-8HS — SCREW,CAP,SOCKET HEAD

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