The Stop,guide,valve,brake, cataloged under National Stock Number 2240-00-499-5550, is classified within Federal Supply Class 2240 (Locomotive and Rail Car Accessories and Components) of the Railway Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 2240-00-499-5550 |
| Item Name | Stop,guide,valve,brake |
| FSC / FSG | 2240 / 22 — Locomotive and Rail Car Accessories and Components |
| 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 |
| Reference | Meaning |
|---|---|
| RV318 | 5/9 Secondary reference General Signal Corp |
| 513240 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2240-00-499-5550 is a Stop,guide,valve,brake, classified under FSC 2240, Locomotive and Rail Car Accessories and Components. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 6610-00-876-1908, 5330-00-927-0251. Verify interchangeability with system specifications before substitution.
Key specifications for 2240-00-499-5550: End Item Identification: 2210005540785,2210008145291. 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.