The Pin,straight,headless, cataloged under National Stock Number 5315-01-481-3573, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-481-3573 |
| Primary Part Number | 123-1678723 PC 51 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| First End Taper Length | 0.0625 INCHES NOMINAL IN |
| Second End Taper Angle | 45.0 DEGREES NOMINAL |
| Hole Arrangement Style | BOTH END DRILLED |
| First End Style | CHAMFERED |
| First Hole Diameter | 0.125 INCHES NOMINAL IN |
| Material Document and Classification | MIL-B-944 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.0625 INCHES NOMINAL IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Pin Overall Diameter | 0.6250 INCHES NOMINAL IN |
| Pin Overall Length | 1.6875 INCHES NOMINAL IN |
| Second End Relationship with First End | IDENTICAL |
| Second Hole Diameter | 0.125 INCHES NOMINAL IN |
| Center to Center Distance Between Holes | 1.3125 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Distance From Centerline of Hole to End of Pin | 0.1875 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 |
| Part Number | Manufacturer |
|---|---|
| 123-1678724 PC 59 | Naval Sea Systems Command (USA) |
| 123-1678723 PC 51 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5315-01-481-3573 is a Pin,straight,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-481-3573 has 2 manufacturer part numbers on file: 123-1678724 PC 59 (Naval Sea Systems Command), 123-1678723 PC 51 (Naval Sea Systems Command).
Key specifications for 123-1678723 PC 51: First End Taper Length: 0.0625 INCHES NOMINAL IN; Second End Taper Angle: 45.0 DEGREES NOMINAL; Hole Arrangement Style: BOTH END DRILLED; First End Style: CHAMFERED. 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.