CA21155-4-6HS — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

CA21155-4-6HS: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OR STEEL COMP 4140 OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN, thread_length: 0.497 INCHES NOMINAL IN, fastener_length: 1.147 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-137-7293, 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

CA21155-4-6HS

NSN: 5305-01-137-7293
FSC: 5305 — Screws
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 8740 OR STEEL COMP 4140 OVERALL
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.394 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
thread_length	0.497 INCHES NOMINAL IN
fastener_length	1.147 INCHES NOMINAL IN
special_features	TWO LEAD THREAD,DRILLED HOLE,0.375 IN. FROM TOP OF HEAD,0.097 IN. MIN. AND 0.104 IN. MAX. DIA,EXTENDED WASHER,0.025 IN. MIN. AND 0.035 IN. MAX. THICKNESS BY 0.515 IN. DIA. IN
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_across_flats	0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
NSN	5305-01-137-7293

COMPONENT DIAGRAM

KEY FEATURES

•

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

•

FASTENER LENGTH: 1.147 INCHES NOMINAL IN

•

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

•

THREAD LENGTH: 0.497 INCHES NOMINAL IN

•

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

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.156 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
FASTENER LENGTH	1.147 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.497 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	TWO LEAD THREAD,DRILLED HOLE,0.375 IN. FROM TOP OF HEAD,0.097 IN. MIN. AND 0.104 IN. MAX. DIA,EXTENDED WASHER,0.025 IN. MIN. AND 0.035 IN. MAX. THICKNESS BY 0.515 IN. DIA. IN
SURFACE TREATMENT	CADMIUM AND CHROMATE OVERALL

OTHER ITEMS IN FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016 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 CA21155-4-6HS?

CA21155-4-6HS is a SCREW,CAP,SOCKET HEAD.

What is the NSN for CA21155-4-6HS?

CA21155-4-6HS is cataloged in the U.S. Government catalog under NSN 5305-01-137-7293. This indicates validated use in U.S. government and defense supply chains.

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CA21155-4-6HS — SCREW,CAP,SOCKET HEAD

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