The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-251-4770, 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18 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-251-4770 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Status | ACTIVE |
| Shank Diameter | 0.312 INCHES NOMINAL IN |
| Second Shank Diameter | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN |
| Undercut Diameter | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN |
| First End Location | SMALL END |
| Hole Arrangement Style | ONE END DRILLED |
| First End Style | SQUARE |
| First Hole Diameter | 0.066 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| Style Designator | UNDERCUT |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Shoulder Diameter | 0.500 INCHES NOMINAL IN |
| Second Shank Length | 0.508 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Distance From Centerline of Hole to End of Pin | 0.090 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 |
|---|---|
| A51S20507-13 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| A51S20507-13 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51S20507-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5315-01-251-4770 is a Pin,shoulder,headless, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
Key specifications for 5315-01-251-4770: Shank Diameter: 0.312 INCHES NOMINAL IN; Second Shank Diameter: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN; Undercut Diameter: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN; First End Location: SMALL END. 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.