The Hose,nonmetallic, cataloged under National Stock Number 4720-01-591-3590, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Hose,nonmetallic |
| FSC / FSG | 4720 — Hose and Flexible Tubing (FSG 47) |
| Manufacturers | Howell Laboratories Inc Dba Howell Laboratories Inc (CAGE 22501) |
| Parameter | Value |
|---|---|
| NSN | 4720-01-591-3590 |
| Primary Part Number | 8461-01 |
| Item Name | Hose,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 8461-01 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| 8014-G502 | D/9 Drawing number reference only Howell Laboratories Inc Dba Howell Laboratories Inc |
NSN 4720-01-591-3590 is a Hose,nonmetallic, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-591-3590 has 1 manufacturer part number on file: 8461-01 (Howell Laboratories Inc Dba Howell Laboratories Inc).
1 possible match (shared part number, not a government interchangeability claim): 5970-01-618-4441. Verify interchangeability with system specifications before substitution.
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.