The Pin,spring, cataloged under National Stock Number 5315-00-531-6901, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-00-531-6901 |
| Item Name | Pin,spring |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | SLOTTED |
| Diameter | 0.250 INCHES NOMINAL IN |
| Material Thickness | 0.048 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| NAS561-8-16 | 3/2 Design control — primary reference U.S. Government activity |
| MILP10971TYPE1C0MP0SITI0NA | 5/9 Secondary reference U.S. Government activity |
| 59-048-250-1000 | 5/9 Secondary reference Harvard Industries Inc |
| NASM10971TYPE1COMPOSITIONA | 3/1 Design control — primary reference U.S. Government activity |
NSN 5315-00-531-6901 is a Pin,spring, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5315-00-844-5835, 5315-01-061-2061. Verify interchangeability with system specifications before substitution.
Key specifications for 5315-00-531-6901: Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL; Style Designator: SLOTTED; Diameter: 0.250 INCHES NOMINAL IN; Overall Length: 1.000 INCHES NOMINAL IN. 5 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.