The Hose Assembly,metallic, cataloged under National Stock Number 4720-01-454-7558, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is R T B Co Inc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-454-7558 |
| Primary Part Number | 78001 |
| Item Name | Hose Assembly,metallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | R T B Co Inc |
| Status | ACTIVE |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Media for Which Designed | BRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE |
| 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 |
|---|---|
| 78001 PRIMARY | R T B Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 78001 | 5/9 Secondary reference Allied Automotive Allied Aftermarket Div |
NSN 4720-01-454-7558 is a Hose Assembly,metallic, manufactured by R T B Co Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-454-7558 has 1 manufacturer part number on file: 78001 (R T B Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5855-01-710-8996. Verify interchangeability with system specifications before substitution.
Key specifications for 78001: Connection Type: THREADED INTERNAL TUBE FIRST END; Cross-Sectional Shape Style: ROUND; Special Features: BRAKE LINE/HOSE COMBINATION OF STEEL AND RUBBER; Media for Which Designed: BRAKE FLUID, NONMINERAL OIL SINGLE RESPONSE. 3 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.