The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-449-6632, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-449-6632 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 150.000 INCHES NOMINAL EXCLUDING END FITTINGS IN |
| Temp Rating | -20.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | SWIVEL NUT, GAS FIRST END |
| Seat Nominal Radius | 0.196 INCHES FIRST END IN |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 2ND LAYER BRAIDED COTTON CORD AND 1ST LAYER BRAIDED COTTON CORD AND OUTER LAYER MOLDED RUBBER |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.656 INCHES NOMINAL IN |
| Thread Direction | LEFT-HAND FIRST END |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Exterior Color | RED |
| Specification/standard Data | 81348-ZZ-H-461 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | A STYLE |
| Inside Diameter | 0.313 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | ACETYLENE SINGLE RESPONSE |
| Hydrostatic Test Pressure | 250.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 700.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | LIGHT RESISTANT |
| Thread Series Designator | UNF FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| CGA E-1 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| M148E | 5/9 Secondary reference Smith Equipment Mfg Co Llc |
| RMA IP-7 | 5/9 Secondary reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| ARPM IP-7 | 4/1 Identification reference Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| ZZ-H-461 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-00-449-6632 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4720-00-834-2560, 4720-00-885-0089. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-00-449-6632: Measuring Method and Length: 150.000 INCHES NOMINAL EXCLUDING END FITTINGS IN; Temp Rating: -20.0 FAHRENHEIT SINGLE RESPONSE DEGF; Connection Style: SWIVEL NUT, GAS FIRST END; Seat Nominal Radius: 0.196 INCHES FIRST END IN. 22 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.