The Pin,shoulder,headless, cataloged under National Stock Number 5315-01-166-6216, 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 23 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5315-01-166-6216 |
| Primary Part Number | 70750-22126-101 |
| Item Name | Pin,shoulder,headless |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Shank Diameter | 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Second Shank Diameter | 0.375 INCHES NOMINAL IN |
| First End Taper Length | 0.040 INCHES NOMINAL IN |
| First End Location | THREADED END |
| Surface Treatment Document and Classification | MIL-A-8625 TY 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Second End Taper Angle | 30.0 DEGREES NOMINAL |
| Thread Length | 0.600 INCHES NOMINAL IN |
| First End Style | CHAMFERED |
| Shank Length | 1.250 INCHES NOMINAL IN |
| Style Designator | SHOULDER |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Second End Taper Length | 0.130 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 | 0.375 INCHES IN |
| Shoulder Diameter | 0.630 INCHES NOMINAL IN |
| Second Shank Length | 1.850 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Second End Style | CHAMFERED |
| Thread Class | 3A A |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 70750-22126-101 | Rotair Aerospace Corp (USA) |
| 70750-22126-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 70750-22126-101 | 5/9 Secondary reference Tek Precision Co Limited |
NSN 5315-01-166-6216 is a Pin,shoulder,headless, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-166-6216 has 2 manufacturer part numbers on file: 70750-22126-101 (Rotair Aerospace Corp), 70750-22126-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70750-22126-101: Shank Diameter: 0.370 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Second Shank Diameter: 0.375 INCHES NOMINAL IN; First End Taper Length: 0.040 INCHES NOMINAL IN; First End Location: THREADED END. 23 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.