1621270 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

1621270: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.311 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN, thread_length: 0.201 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN, fastener_length: 0.375 INCHES NOMINAL IN, locking_feature: PATCH OR PELLET OR STRIP THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-311-7908, 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

1621270

NSN: 5305-01-311-7908
FSC: 5305 — Screws
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)

SPECIFICATIONS

material	PLASTIC POLYAMIDE NYLON OR PLASTIC POLYHEXAMETHYLENE AMIDE OR PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OR PLASTIC POLYCAPROLACTAM OR PLASTIC POLYHEXAMETHYLENE SEBACAMIDE LOCKING FEATURE
head_style	FLAT COUNTERSUNK
thread_class	3A A
head_diameter	0.311 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
thread_length	0.201 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
fastener_length	0.375 INCHES NOMINAL IN
locking_feature	PATCH OR PELLET OR STRIP THREADS
thread_direction	RIGHT-HAND
countersink_angle	82.0 DEGREES NOMINAL
width_across_flats	0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
internal_drive_style	HEXAGON
nominal_thread_diameter	0.164 INCHES IN
NSN	5305-01-311-7908

COMPONENT DIAGRAM

KEY FEATURES

•

WIDTH ACROSS FLATS: 0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN

•

FASTENER LENGTH: 0.375 INCHES NOMINAL IN

•

THREAD LENGTH: 0.201 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: L-P-410 FED SPEC ALL MATERIAL RESPONSES LOCKING FEATURE

•

NOMINAL THREAD DIAMETER: 0.164 INCHES IN

•

HEAD STYLE: FLAT COUNTERSUNK

•

THREAD DIRECTION: RIGHT-HAND

•

LOCKING FEATURE: PATCH OR PELLET OR STRIP THREADS

TECHNICAL CHARACTERISTICS

WIDTH ACROSS FLATS	0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
FASTENER LENGTH	0.375 INCHES NOMINAL IN
THREAD LENGTH	0.201 INCHES MINIMUM AND 0.263 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	L-P-410 FED SPEC ALL MATERIAL RESPONSES LOCKING FEATURE
NOMINAL THREAD DIAMETER	0.164 INCHES IN
HEAD STYLE	FLAT COUNTERSUNK
THREAD DIRECTION	RIGHT-HAND
LOCKING FEATURE	PATCH OR PELLET OR STRIP THREADS
INTERNAL DRIVE STYLE	HEXAGON
COUNTERSINK ANGLE	82.0 DEGREES NOMINAL

SUBSTITUTES & CROSS-REFERENCES 2

1621270-2Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

5305PL0971352Reference document

Same NSN cross-reference

Reference document — Informative reference only

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 1621270?

1621270 is a SCREW,CAP,SOCKET HEAD.

What parts can replace 1621270?

There are 2 known substitutes for 1621270: 1621270-2, 5305PL0971352. Substitute compatibility should be verified for your specific system.

What is the NSN for 1621270?

1621270 is cataloged in the U.S. Government catalog under NSN 5305-01-311-7908. This indicates validated use in U.S. government and defense supply chains.

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1621270 — SCREW,CAP,SOCKET HEAD

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