The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-351-1978, 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 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-351-1978 |
| Primary Part Number | 6404052 FIND 28 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shank Diameter | 0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| First End Taper Length | 0.060 INCHES NOMINAL IN |
| First End Location | UNTHREADED END |
| Thread Length | 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| First End Style | CHAMFERED |
| Shank Length | 1.240 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Style Designator | SHOULDER |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| First End Taper Angle | 25.0 DEGREES MINIMUM AND 35.0 DEGREES MAXIMUM |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Shoulder Diameter | 0.500 INCHES NOMINAL IN |
| Internal Drive Style | SOCKET |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Material | STEEL COMP 304 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 |
|---|---|
| 6404052 FIND 28 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 801-6404052-28 | 5/9 Secondary reference Naval Sea Systems Command |
| 211046213 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5315-01-351-1978 is a Pin,shoulder,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-351-1978 has 1 manufacturer part number on file: 6404052 FIND 28 (Naval Sea Systems Command).
Key specifications for 6404052 FIND 28: Shank Diameter: 0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; First End Taper Length: 0.060 INCHES NOMINAL IN; First End Location: UNTHREADED END; Thread Length: 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN. 19 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.