The Key,machine, cataloged under National Stock Number 5315-01-250-5443, is classified within Federal Supply Class 5315 (Nails, Machine Keys, and Pins) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5315-01-250-5443 |
| Primary Part Number | 120116 |
| Item Name | Key,machine |
| FSC / FSG | 5315 / 53 — Nails, Machine Keys, and Pins |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Starting Edge Shape | STRAIGHT |
| Style Designator | PLAIN |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Material | STEEL COMP 1335 OR STEEL COMP 4130 OR STEEL COMP 5130 OR STEEL COMP 8630 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 |
|---|---|
| 120116 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 120116 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5315-01-250-5443 is a Key,machine, manufactured by The Boeing Company, classified under FSC 5315, Nails, Machine Keys, and Pins. Status: active.
NSN 5315-01-250-5443 has 1 manufacturer part number on file: 120116 (The Boeing Company).
2 possible matches (shared part number, not a government interchangeability claim): 5975-01-524-9140, 6550-01-579-9406. Verify interchangeability with system specifications before substitution.
Key specifications for 120116: Overall Height: 0.2475 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL; Starting Edge Shape: STRAIGHT; Style Designator: PLAIN. 5 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.