The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-00-449-6630, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-00-449-6630 |
| 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 |
| Connection Style | SWIVEL NUT, COMPRESSION FIRST END |
| Connection Style | SWIVEL NUT, COMPRESSION SECOND END |
| Seat Nominal Radius | 0.196 INCHES FIRST END IN |
| Seat Nominal Radius | 0.196 INCHES SECOND END IN |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 1ST LAYER RUBBER IMPREGNATED BRAIDED COTTON CORD OR 1ST LAYER RUBBER IMPREGNATED BRAIDED FABRIC AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE |
| Connection Type | THREADED INTERNAL TUBE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.531 INCHES NOMINAL IN |
| End Fitting Component and Material | COMPLETE FITTING COPPER ALLOY ALL ENDS |
| Thread Direction | LEFT-HAND FIRST END |
| Thread Direction | LEFT-HAND SECOND END |
| Nominal Thread Size | 0.375 INCHES SECOND END IN |
| 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 | 2 TYPE AND A STYLE |
| Inside Diameter | 0.188 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 | 3B SECOND END |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 600.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 24 SECOND END |
| Thread Quantity Per Inch | 18 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 |
|---|---|
| M166B | 5/9 Secondary reference Smith Equipment Mfg Co Llc |
| ZZ-H-461 | 4/1 Identification reference U.S. Government activity |
| RA121 | 5/9 Secondary reference Smith Equipment Mfg Co Llc |
| ZZ-H-461 TY2STA | 5/1 Secondary reference U.S. Government activity |
NSN 4720-00-449-6630 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5895-00-603-7961. Verify interchangeability with system specifications before substitution.
Key specifications for 4720-00-449-6630: Measuring Method and Length: 150.000 INCHES NOMINAL EXCLUDING END FITTINGS IN; Connection Style: SWIVEL NUT, COMPRESSION FIRST END; Connection Style: SWIVEL NUT, COMPRESSION SECOND END; Seat Nominal Radius: 0.196 INCHES FIRST END IN. 29 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.