PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M21143/2-70Pin,straight,headless

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5315-01-285-4083 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-01-285-4083 — this item is cataloged by the U.S. Government under National Stock Number 5315-01-285-4083. Primary manufacturer part number: M21143/2-70.
Features
  • Pin,straight,headless — FSC 5315
  • First End Style: SQUARE
  • Material: STEEL COMP 303 OVERALL
  • Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
  • Pin Overall Diameter: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
  • Second End Relationship with First End: IDENTICAL
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Pin,straight,headless, cataloged under National Stock Number 5315-01-285-4083, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-01-285-4083
Primary Part NumberM21143/2-70
Item NamePin,straight,headless
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
First End StyleSQUARE
MaterialSTEEL COMP 303 OVERALL
Surface Treatment Document and ClassificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Pin Overall Diameter0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
Second End Relationship with First EndIDENTICAL
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentPASSIVATE OVERALL
Pin Overall Length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-00-823-8767 INTERCHANGEABLE
Pin,straight,headless
5315-00-987-0867 INTERCHANGEABLE
Pin,straight,headless
5315-01-049-4800 INTERCHANGEABLE
Pin,straight,headless
5315-01-255-6652 INTERCHANGEABLE
Pin,straight,headless
5315-01-269-4473 INTERCHANGEABLE
Pin,straight,headless
5315-01-271-8431 INTERCHANGEABLE
Pin,straight,headless
5315-01-285-7142 INTERCHANGEABLE
Pin,straight,headless
5315-01-324-8900 INTERCHANGEABLE
Pin,straight,headless
5315-01-334-3814 INTERCHANGEABLE
Pin,straight,headless
5315-01-343-8477M21143/2-128 INTERCHANGEABLE
Pin,straight,headless
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
M21143/2-70 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-P-21143/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2698178-70 Raytheon Company Dba Raytheon (USA)
Related Parts
5315-00-823-8767INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-00-987-0867INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-049-4800INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-255-6652INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-269-4473INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-271-8431INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-285-7142INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-324-8900INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-334-3814INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-343-8477INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
M21143/2-128
5315-01-351-1962INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5315-01-352-2821INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS

Frequently Asked Questions

What is NSN 5315-01-285-4083?

NSN 5315-01-285-4083 is a Pin,straight,headless, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-01-285-4083?

NSN 5315-01-285-4083 has 3 cross-referenced part numbers: M21143/2-70 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-P-21143/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 2698178-70 (Raytheon Company Dba Raytheon).

What NSN replaces 5315-01-285-4083?

There are 12 known substitutes for 5315-01-285-4083: 5315-00-823-8767, 5315-00-987-0867, 5315-01-049-4800 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M21143/2-70?

Key specifications for M21143/2-70: First End Style: SQUARE; Material: STEEL COMP 303 OVERALL; Surface Treatment Document and Classification: ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Pin Overall Diameter: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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