MIL-P-21143/1 — PIN,STRAIGHT,HEADLESS

✓ Government record, cited

— · NUT WASHER

PRODUCT OVERVIEW

MIL-P-21143/1: PIN,STRAIGHT,HEADLESS.

The PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, surface_finish: 16.0 MICROINCHES OUTSIDE DIAMETER, first_end_style: SQUARE, surface_treatment: PASSIVATE OVERALL, pin_overall_length: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, pin_overall_diameter: 0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-091-4047, 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

MIL-P-21143/1

NSN: 5315-01-091-4047
NIINs: 010914047, 012569791, 012839934, 012857792, 012916637, 013031021, 013071854, 013261280, 013265074, 013362450, 013365516, 013436507, 013441782, 013506298, 013562167, 013662977, 013761038, 013870122, 013909057, 014230380
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	STEEL COMP 303 OVERALL
surface_finish	16.0 MICROINCHES OUTSIDE DIAMETER
first_end_style	SQUARE
surface_treatment	PASSIVATE OVERALL
pin_overall_length	0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
pin_overall_diameter	0.2500 INCHES MINIMUM AND 0.2502 INCHES MAXIMUM IN
material_document_and_classification	ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_end	IDENTICAL
NSN	5315-01-091-4047

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

FIRST END STYLE: SQUARE

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

PIN OVERALL DIAMETER: 0.0625 INCHES MINIMUM AND 0.0627 INCHES MAXIMUM IN

•

PIN OVERALL LENGTH: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN

•

SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL

•

SURFACE TREATMENT: PASSIVATE OVERALL

•

MATERIAL: STEEL COMP 303 OVERALL

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072 E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
FIRST END STYLE	SQUARE
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER	0.0625 INCHES MINIMUM AND 0.0627 INCHES MAXIMUM IN
PIN OVERALL LENGTH	0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST END	IDENTICAL
SURFACE TREATMENT	PASSIVATE OVERALL
MATERIAL	STEEL COMP 303 OVERALL

SUBSTITUTES & CROSS-REFERENCES 2

411197-5Reference document

Same NSN cross-reference

Reference document — Secondary reference

M21143/1-5Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MIL-P-21143/1?

MIL-P-21143/1 is a PIN,STRAIGHT,HEADLESS.

What parts can replace MIL-P-21143/1?

There are 2 known substitutes for MIL-P-21143/1: 411197-5, M21143/1-5. Substitute compatibility should be verified for your specific system.

What is the NSN for MIL-P-21143/1?

MIL-P-21143/1 is cataloged in the U.S. Government catalog under NSN 5315-01-091-4047. This indicates validated use in U.S. government and defense supply chains.

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