639AS937 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

639AS937: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, thread_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-145-7204, 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

639AS937

NSN: 5305-01-145-7204
FSC: 5305 — Screws
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)

SPECIFICATIONS

material	STEEL OVERALL
head_style	FLAT CHAMFER
head_height	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
thread_class	3A A
head_diameter	0.262 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
thread_length	0.250 INCHES NOMINAL IN
fastener_length	0.250 INCHES NOMINAL IN
special_features	W/0.086-56 UNC-2B THD THRU HOLE ON LONGITUDINAL AXIS
thread_direction	RIGHT-HAND
surface_treatment	CADMIUM OVERALL
width_across_flats	0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
NSN	5305-01-145-7204

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN

•

HEAD HEIGHT: 0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.250 INCHES NOMINAL IN

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

THREAD LENGTH: 0.250 INCHES NOMINAL IN

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD STYLE: FLAT CHAMFER

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.1406 INCHES MINIMUM AND 0.1426 INCHES MAXIMUM IN
HEAD HEIGHT	0.159 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN
FASTENER LENGTH	0.250 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	FLAT CHAMFER
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	W/0.086-56 UNC-2B THD THRU HOLE ON LONGITUDINAL AXIS
SURFACE TREATMENT	CADMIUM 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 2

10115423Reference document

Same NSN cross-reference

Reference document — Informative reference only

588.10-400000-003Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 639AS937?

639AS937 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 639AS937?

There are 2 known substitutes for 639AS937: 10115423, 588.10-400000-003. Substitute compatibility should be verified for your specific system.

What is the NSN for 639AS937?

639AS937 is cataloged in the U.S. Government catalog under NSN 5305-01-145-7204. This indicates validated use in U.S. government and defense supply chains.

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639AS937 — SCREW,CAP,SOCKET HEAD

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