The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-203-8543, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-203-8543 |
| Primary Part Number | 12339726 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Shank Diameter | 0.375 INCHES NOMINAL IN |
| Second Shank Diameter | 0.494 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Undercut Width | 0.040 INCHES NOMINAL IN |
| Undercut Diameter | 0.313 INCHES NOMINAL IN |
| First End Location | BOTH ENDS |
| Surface Treatment Document and Classification | MIL-A-8625 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.300 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Shank Length | 0.330 INCHES NOMINAL IN |
| Style Designator | UNDERCUT |
| Material Document and Classification | ASTM B221-T6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Second Undercut Width | 0.046 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.494 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Second Shank Length | 0.400 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 2A A |
| Second Undercut Diameter | 0.396 INCHES MINIMUM AND 0.399 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5315-01-203-8543 is a Pin,shoulder,headless, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-203-8543 has 2 manufacturer part numbers on file: 5584281 (Am General Llc), 12339726 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12339726: Shank Diameter: 0.375 INCHES NOMINAL IN; Second Shank Diameter: 0.494 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Undercut Width: 0.040 INCHES NOMINAL IN; Undercut Diameter: 0.313 INCHES NOMINAL IN. 22 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.