The Pin,grooved,headed, cataloged under National Stock Number 5315-00-979-4638, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5315-00-979-4638 |
| Item Name | Pin,grooved,headed |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Width Across Flats | 0.870 INCHES NOMINAL IN |
| First End Taper Length | 0.060 INCHES NOMINAL IN |
| Undercut Diameter | 0.500 INCHES NOMINAL IN |
| Under Head Length | 3.600 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Style Designator | GROOVE |
| Pin Head Diameter | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | AMS 6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Effective Length | 3.100 INCHES NOMINAL IN |
| Head Style | ROUND W/WRENCH FLATS |
| Grip Length | 3.120 INCHES NOMINAL IN |
| Height | 0.125 INCHES NOMINAL IN |
| Second Undercut Radius | 0.030 INCHES NOMINAL IN |
| Undercut Radius | 0.040 INCHES NOMINAL IN |
| Second Undercut Diameter | 0.560 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 |
|---|---|
| 62C31209 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5315-00-979-4638 is a Pin,grooved,headed, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-00-979-4638: Width Across Flats: 0.870 INCHES NOMINAL IN; First End Taper Length: 0.060 INCHES NOMINAL IN; Undercut Diameter: 0.500 INCHES NOMINAL IN; Under Head Length: 3.600 INCHES NOMINAL IN. 18 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.