The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-500-2503, 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 24 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-500-2503 |
| Primary Part Number | 7345110 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shank Diameter | 0.311 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.250 INCHES NOMINAL IN |
| Undercut Width | 0.060 INCHES NOMINAL IN |
| First End Taper Length | 0.030 INCHES NOMINAL IN |
| Undercut Diameter | 0.240 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Second End Taper Angle | 45.0 DEGREES NOMINAL |
| Thread Length | 0.500 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 0.690 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Style Designator | UNDERCUT |
| Material Document and Classification | QQ-N-281, CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.020 INCHES NOMINAL IN |
| First End Taper Angle | 45.0 DEGREES NOMINAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Shoulder Diameter | 0.500 INCHES NOMINAL IN |
| Second Shank Length | 2.090 INCHES MINIMUM AND 2.110 INCHES MAXIMUM IN |
| Second End Style | CHAMFERED |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | NICKEL ALLOY 400 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 7345110 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5315-01-500-2503 is a Pin,shoulder,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-500-2503 has 1 manufacturer part number on file: 7345110 (Naval Sea Systems Command).
Key specifications for 7345110: Shank Diameter: 0.311 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN; Second Shank Diameter: 0.250 INCHES NOMINAL IN; Undercut Width: 0.060 INCHES NOMINAL IN; First End Taper Length: 0.030 INCHES NOMINAL IN. 24 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.