CA4740-04-9 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

CA4740-04-9: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 FASTENER, head_style: FLAT COUNTERSUNK, thread_class: 3A A, surface_finish: 63.0 MICROINCHES GRIP, fastener_length: 0.990 INCHES NOMINAL IN, hardness_rating: 50.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM LOCKING FEATURE. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-151-8676, 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

CA4740-04-9

NSN: 5305-00-151-8676
FSC: 5305 — Screws
CAGE: 29372 — HOWMET GLOBAL FASTENING SYSTEMS INC. DIV TRIDAIR PRODUCTS (USA)

SPECIFICATIONS

material	STEEL COMP 8740 FASTENER
head_style	FLAT COUNTERSUNK
thread_class	3A A
surface_finish	63.0 MICROINCHES GRIP
fastener_length	0.990 INCHES NOMINAL IN
hardness_rating	50.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM LOCKING FEATURE
locking_feature	DETENT BALL THREADS
special_features	SPINDLE PASSIVATE PER QQ-P-35; 180000 PSI; MATERIAL CRES AMS 5643 17-4PH OR ALLOY STEEL PER MIL-S-6049
thread_direction	RIGHT-HAND
surface_treatment	PASSIVATE LOCKING FEATURE
internal_drive_style	OFFSET CRUCIFORM (TORQUE SET)
nominal_thread_diameter	0.250 INCHES IN
NSN	5305-00-151-8676

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE FINISH: 63.0 MICROINCHES GRIP

•

FASTENER LENGTH: 0.990 INCHES NOMINAL IN

•

HARDNESS RATING: 50.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM LOCKING FEATURE

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

LOCKING FEATURE: DETENT BALL THREADS

TECHNICAL CHARACTERISTICS

SURFACE FINISH	63.0 MICROINCHES GRIP
SURFACE FINISH	63.0 MICROINCHES BEARING SURFACE OF HEAD
FASTENER LENGTH	0.990 INCHES NOMINAL IN
HARDNESS RATING	50.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM LOCKING FEATURE
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
LOCKING FEATURE	DETENT BALL THREADS
SPECIAL FEATURES	SPINDLE PASSIVATE PER QQ-P-35; 180000 PSI; MATERIAL CRES AMS 5643 17-4PH OR ALLOY STEEL PER MIL-S-6049
SURFACE TREATMENT	PASSIVATE SPRING

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 2

VP1120-4-9Reference document

Same NSN cross-reference

Reference document — Secondary reference

GB510K4-9Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is CA4740-04-9?

CA4740-04-9 is a SCREW,CAP,SOCKET HEAD.

What parts can replace CA4740-04-9?

There are 2 known substitutes for CA4740-04-9: VP1120-4-9, GB510K4-9. Substitute compatibility should be verified for your specific system.

What is the NSN for CA4740-04-9?

CA4740-04-9 is cataloged in the U.S. Government catalog under NSN 5305-00-151-8676. This indicates validated use in U.S. government and defense supply chains.

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CA4740-04-9 — SCREW,CAP,SOCKET HEAD

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