The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-171-1963, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-171-1963 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Status | ACTIVE |
| Measuring Method and Length | 31.250 INCHES MINIMUM OVERALL AND 31.750 INCHES MAXIMUM OVERALL IN |
| Minimum Inside Bending Radius | 4.000 INCHES IN |
| Connection Style | INVERTED FLARE SECOND END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 2ND LAYER BRAIDED WIRE AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.594 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Seat Angle | 30.0 DEGREES SECOND END |
| Inside Diameter | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 11000.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPTF SECOND END |
| 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 |
|---|---|
| 4189729 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-171-1963 is a Hose Assembly,nonmetallic, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
Key specifications for 4720-01-171-1963: Measuring Method and Length: 31.250 INCHES MINIMUM OVERALL AND 31.750 INCHES MAXIMUM OVERALL IN; Minimum Inside Bending Radius: 4.000 INCHES IN; Connection Style: INVERTED FLARE SECOND END; Connection Style: SWIVEL NUT FLARE FIRST END. 24 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.