The Pin,grooved,headed, cataloged under National Stock Number 5315-01-266-5874, 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15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5315-01-266-5874 |
| Item Name | Pin,grooved,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Undercut Width | 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN |
| Undercut Diameter | 0.540 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN |
| Distance From Centerline to Flat | 0.340 INCHES NOMINAL IN |
| Under Head Length | 1.460 INCHES NOMINAL IN |
| First End Style | SQUARE |
| Style Designator | GROOVE |
| Pin Head Diameter | 0.780 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.564 INCHES MINIMUM AND 0.566 INCHES MAXIMUM IN |
| Effective Length | 1.350 INCHES MINIMUM AND 1.355 INCHES MAXIMUM IN |
| Head Style | DEE CHAMFER |
| Second Undercut Width | 0.090 INCHES NOMINAL IN |
| Height | 0.090 INCHES NOMINAL IN |
| Second Undercut Diameter | 0.540 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN |
| Material | STEEL COMP 4130 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 |
|---|---|
| 4-80631 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-01-266-5874 is a Pin,grooved,headed, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-529-3294. Verify interchangeability with system specifications before substitution.
Key specifications for 5315-01-266-5874: Undercut Width: 0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Undercut Diameter: 0.540 INCHES MINIMUM AND 0.545 INCHES MAXIMUM IN; Distance From Centerline to Flat: 0.340 INCHES NOMINAL IN; Under Head Length: 1.460 INCHES NOMINAL IN. 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.