The Key, cataloged under National Stock Number 2240-00-361-1390, is classified within Federal Supply Class 2240 (Locomotive and Rail Car Accessories and Components) of the Railway Equipment group. The manufacturer of record is Acf Industries Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2240-00-361-1390 |
| Primary Part Number | 21-5541 |
| Item Name | Key |
| FSC / FSG | 2240 / 22 — Locomotive and Rail Car Accessories and Components |
| Manufacturer | Acf Industries Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 21-5541 PRIMARY | Acf Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 414A19989-714 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2240-00-361-1390 is a Key, manufactured by Acf Industries Inc, classified under FSC 2240, Locomotive and Rail Car Accessories and Components. Status: active.
NSN 2240-00-361-1390 has 1 manufacturer part number on file: 21-5541 (Acf Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 6210-00-834-7318. Verify interchangeability with system specifications before substitution.
Key specifications for 21-5541: End Item Identification: 2220002992865,2220005540453. 0 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.