12157-3-7 — SCREW,CLOSE TOLERANCE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12157-3-7: SCREW,CLOSE TOLERANCE.

The SCREW,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OVERALL, head_style: FLAT COUNTERSUNK, grip_length: 0.419 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.2041 INCHES MINIMUM AND 0.2051 INCHES MAXIMUM IN, head_diameter: 0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-296-9202, 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

12157-3-7

NSN: 5305-01-296-9202
FSC: 5305 — Screws
CAGE: 80539 — SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP DIV AEROSPACE - SANTA ANA (USA)

SPECIFICATIONS

material	STEEL COMP H11 OVERALL
head_style	FLAT COUNTERSUNK
grip_length	0.419 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN
thread_class	3A A
grip_diameter	0.2041 INCHES MINIMUM AND 0.2051 INCHES MAXIMUM IN
head_diameter	0.325 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
thread_length	0.323 INCHES NOMINAL IN
fastener_length	0.742 INCHES MINIMUM AND 0.772 INCHES MAXIMUM IN
hardness_rating	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_direction	RIGHT-HAND
countersink_angle	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
internal_drive_style	OFFSET CRUCIFORM (TORQUE SET)
NSN	5305-01-296-9202

COMPONENT DIAGRAM

KEY FEATURES

•

FASTENER LENGTH: 0.742 INCHES MINIMUM AND 0.772 INCHES MAXIMUM IN

•

THREAD LENGTH: 0.323 INCHES NOMINAL IN

•

HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL

•

SINGLE SHEAR STRENGTH: ERR-060

•

NOMINAL THREAD DIAMETER: 0.190 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

FASTENER LENGTH	0.742 INCHES MINIMUM AND 0.772 INCHES MAXIMUM IN
THREAD LENGTH	0.323 INCHES NOMINAL IN
HARDNESS RATING	46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION	AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SINGLE SHEAR STRENGTH	ERR-060
NOMINAL THREAD DIAMETER	0.190 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
GRIP LENGTH	0.419 INCHES MINIMUM AND 0.449 INCHES MAXIMUM IN
GRIP DIAMETER	0.2041 INCHES MINIMUM AND 0.2051 INCHES MAXIMUM IN

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

C7984-3-7RReference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

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 12157-3-7?

12157-3-7 is a SCREW,CLOSE TOLERANCE.

What parts can replace 12157-3-7?

There is 1 known substitute for 12157-3-7: C7984-3-7R. Substitute compatibility should be verified for your specific system.

What is the NSN for 12157-3-7?

12157-3-7 is cataloged in the U.S. Government catalog under NSN 5305-01-296-9202. This indicates validated use in U.S. government and defense supply chains.

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