The Pin,straight,headless, cataloged under National Stock Number 5315-01-057-3318, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-057-3318 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES OUTSIDE DIAMETER |
| First End Taper Length | 0.545 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Hardness Rating | 47.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ASTM A29 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 4.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM |
| Pin Overall Diameter | 0.6251 INCHES MINIMUM AND 0.6253 INCHES MAXIMUM IN |
| Pin Overall Length | 2.740 INCHES MINIMUM AND 2.760 INCHES MAXIMUM IN |
| Second End Relationship with First End | NOT IDENTICAL |
| Features Provided | CASEHARDENED |
| Shear Strength | 78000 DOUBLE POUND |
| Second End Style | RADIUS |
| Material | STEEL OVERALL |
| Second End Corner Radius | 0.078 INCHES MINIMUM AND 0.208 INCHES MAXIMUM 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 |
|---|---|
| MS16555-91 | 2/2 Government specification standardization U.S. Government activity |
NSN 5315-01-057-3318 is a Pin,straight,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5315-01-497-7090. Verify interchangeability with system specifications before substitution.
Key specifications for 5315-01-057-3318: Surface Finish: 16.0 MICROINCHES OUTSIDE DIAMETER; First End Taper Length: 0.545 INCHES NOMINAL IN; First End Style: CHAMFERED; Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 58.0 ROCKWELL C MAXIMUM OVERALL. 14 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.