The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-381-9677, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-381-9677 |
| Primary Part Number | 254-6556644FNCOTM-A19 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shank Diameter | 0.5000 INCHES NOMINAL IN |
| First End Location | SLOT END |
| First End Slot Width | 0.1200 INCHES NOMINAL IN |
| Thread Length | 0.5000 INCHES NOMINAL IN |
| First End Style | SLOTTED |
| Shank Length | 3.3800 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | QQ-N-281, CL-A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Relationship with First End | NOT IDENTICAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5000 INCHES IN |
| First End Slot Depth | 0.1900 INCHES NOMINAL IN |
| Shoulder Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Internal Drive Style | SLOT |
| Second End Style | SQUARE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| 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 |
|---|---|
| 254-6556644FNCOTM-A19 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5315-01-381-9677 is a Pin,shoulder,headless, manufactured by Naval Sea Systems Command, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-381-9677 has 1 manufacturer part number on file: 254-6556644FNCOTM-A19 (Naval Sea Systems Command).
Key specifications for 254-6556644FNCOTM-A19: Shank Diameter: 0.5000 INCHES NOMINAL IN; First End Location: SLOT END; First End Slot Width: 0.1200 INCHES NOMINAL IN; Thread Length: 0.5000 INCHES NOMINAL 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.