The Pin,straight,headed, cataloged under National Stock Number 5315-00-522-3931, 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 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-522-3931 |
| Primary Part Number | 5223931 |
| Item Name | Pin,straight,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES OVERALL |
| Chamfer Length | 0.031 INCHES NOMINAL IN |
| Hole Arrangement Style | ONE END DRILLED |
| Under Head Length | 1.047 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN |
| Pin Chamfer Angle | 45.0 DEGREES NOMINAL |
| First Hole Diameter | 0.016 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN |
| Style Designator | STRAIGHT |
| Pin Head Diameter | 0.547 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM 1322 ASSN STD ALL MATERIAL RESPONSES OR ASTM A331 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Diameter | 0.308 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN |
| Features Provided | CASEHARDENED |
| Head Style | FLAT CHAMFER |
| Height | 0.125 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE MANGANESE OR PHOSPHATE ZINC OVERALL |
| Material | STEEL COMP 8620 OR STEEL COMP 8720 OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.156 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5223931 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5315-00-522-3931 is a Pin,straight,headed, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-00-522-3931 has 1 manufacturer part number on file: 5223931 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 5223931: Surface Finish: 125.0 MICROINCHES OVERALL; Chamfer Length: 0.031 INCHES NOMINAL IN; Hole Arrangement Style: ONE END DRILLED; Under Head Length: 1.047 INCHES MINIMUM AND 1.078 INCHES MAXIMUM IN. 16 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.