The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-256-7291, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-256-7291 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Shank Diameter | 0.375 INCHES NOMINAL IN |
| First End Countersink Diameter | 0.313 INCHES NOMINAL IN |
| First End Location | COUNTERSUNK END |
| Second End Taper Angle | 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM |
| Hole Arrangement Style | ONE END DRILLED |
| First End Style | COUNTERSUNK |
| Shank Length | 0.950 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Countersink Angle | 55.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM |
| Shoulder Diameter | 0.375 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN |
| Second End Style | POINTED |
| Material | STEEL COMP 630 OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.190 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 |
| Reference | Meaning |
|---|---|
| 214-031-896-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-256-7291 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-256-7291: Shank Diameter: 0.375 INCHES NOMINAL IN; First End Countersink Diameter: 0.313 INCHES NOMINAL IN; First End Location: COUNTERSUNK END; Second End Taper Angle: 40.0 DEGREES MINIMUM AND 50.0 DEGREES MAXIMUM. 15 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.