The Pin,straight,headless, cataloged under National Stock Number 5315-01-475-5557, 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 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-475-5557 |
| Primary Part Number | 110-4367538 PC 44 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Material Document and Classification | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pin Overall Diameter | 0.5000 INCHES NOMINAL IN |
| Pin Overall Length | 1.875 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 110-4367538 PC 44 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 110-4367538 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5315-01-475-5557 is a Pin,straight,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-475-5557 has 1 manufacturer part number on file: 110-4367538 PC 44 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-475-8232, 5330-01-475-9292. Verify interchangeability with system specifications before substitution.
Key specifications for 110-4367538 PC 44: Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Pin Overall Diameter: 0.5000 INCHES NOMINAL IN; Pin Overall Length: 1.875 INCHES NOMINAL IN; End Item Identification: AIRCRAFT CARRIER 68. 4 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.