The Pin,straight,headless, cataloged under National Stock Number 5315-01-166-2663, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 12 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 | 5315-01-166-2663 |
| Primary Part Number | 70400-25150-101 |
| Item Name | Pin,straight,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES OUTSIDE DIAMETER |
| Surface Treatment Document and Classification | QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Hole Arrangement Style | DRILLED THRU CENTER |
| First End Style | SQUARE |
| First Hole Diameter | 0.196 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-8844,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pin Overall Diameter | 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Pin Overall Length | 1.440 INCHES MINIMUM AND 1.450 INCHES MAXIMUM IN |
| Second End Relationship with First End | IDENTICAL |
| Surface Treatment | CHROMIUM OVERALL |
| Material | STEEL COMP 4340 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 70400-25150-101 | Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co (USA) |
| 70400-25150-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5315-01-166-2663 is a Pin,straight,headless, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-166-2663 has 2 manufacturer part numbers on file: 70400-25150-101 (Apex Manufacturing Company, Inc. Dba Apex Manufacturing Co), 70400-25150-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70400-25150-101: Surface Finish: 32.0 MICROINCHES OUTSIDE DIAMETER; Surface Treatment Document and Classification: QQ-C-320,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Hole Arrangement Style: DRILLED THRU CENTER; First End Style: SQUARE. 12 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.