221B1580P1 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

221B1580P1: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 8630 OVERALL, head_style: HEXAGON COUNTERSUNK, head_height: 0.120 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.297 INCHES NOMINAL IN, fastener_length: 0.368 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-352-8882, 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

221B1580P1

NSN: 5305-01-352-8882
FSC: 5305 — Screws
CAGE: 99971 — LOCKHEED MARTIN CORP NAVAL ELECTRONICS & SURVEILLANCE SYSTEMS (USA)

SPECIFICATIONS

material	STEEL COMP 4037 OR STEEL COMP 8630 OVERALL
head_style	HEXAGON COUNTERSUNK
head_height	0.120 INCHES NOMINAL IN
thread_class	3A A
thread_length	0.297 INCHES NOMINAL IN
fastener_length	0.368 INCHES NOMINAL IN
thread_direction	RIGHT-HAND
countersink_angle	100.0 DEGREES NOMINAL
surface_treatment	CADMIUM AND CHROMATE OVERALL
width_between_flats	0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
nominal_thread_diameter	0.250 INCHES IN
thread_quantity_per_inch	28
NSN	5305-01-352-8882

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.120 INCHES NOMINAL IN

•

FASTENER LENGTH: 0.368 INCHES NOMINAL IN

•

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

•

THREAD LENGTH: 0.297 INCHES NOMINAL IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS6300 ASSN STD 1ST MATERIAL RESPONSE OR IL-S-6050 FED STD 10TH MATERIAL RESPONSE OVERALL

•

NOMINAL THREAD DIAMETER: 0.250 INCHES IN

•

HEAD STYLE: HEXAGON COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.120 INCHES NOMINAL IN
FASTENER LENGTH	0.368 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH	0.297 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS6300 ASSN STD 1ST MATERIAL RESPONSE OR IL-S-6050 FED STD 10TH MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER	0.250 INCHES IN
HEAD STYLE	HEXAGON COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
WIDTH BETWEEN FLATS	0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM 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.

5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831

SUBSTITUTES & CROSS-REFERENCES 1

221B1580P0001Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 221B1580P1?

221B1580P1 is a SCREW,CAP,HEXAGON HEAD.

What parts can replace 221B1580P1?

There is 1 known substitute for 221B1580P1: 221B1580P0001. Substitute compatibility should be verified for your specific system.

What is the NSN for 221B1580P1?

221B1580P1 is cataloged in the U.S. Government catalog under NSN 5305-01-352-8882. This indicates validated use in U.S. government and defense supply chains.

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221B1580P1 — SCREW,CAP,HEXAGON HEAD

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