The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-697-3607, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Stauff Corp. Government technical data includes 26 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-697-3607 |
| Primary Part Number | SMS-20/U1/4-2550-B-W4 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Stauff Corp |
| Status | ACTIVE |
| Measuring Method and Length | 2550.0 MILLIMETERS NOMINAL WORKING MM |
| Temp Rating | -31.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 0.790 INCHES IN |
| Connection Style | SWIVEL NUT FLARE SECOND END |
| Thread Pitch in Millimeters | 2.0 FIRST END |
| End Connection Design | STRAIGHT ALL ENDS |
| Layer Composition and Location | 1ST LAYER NYLON TUBE AND INNER BRAIDED FIBER |
| Connection Type | THREADED INTERNAL SECOND END |
| Connection Type | SWIVEL FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES SECOND END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.200 INCHES NOMINAL IN |
| Operating Pressure | 9137.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| End Fitting Component and Material | COMPLETE FITTING STEEL CORROSION RESISTING ALL ENDS |
| Nominal Thread Size | 16.0 MILLIMETERS FIRST END MM |
| Nominal Thread Size | 0.4375 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES SECOND END |
| Exterior Color | BLACK |
| Inside Diameter | 0.080 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | HYDRAULIC FLUID SINGLE RESPONSE |
| Hydrostatic Test Pressure | 13778.00 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 27557.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 20 SECOND END |
| Thread Series Designator | ISO M FIRST END |
| Thread Series Designator | UNF SECOND END |
| 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 |
|---|---|
| SMS-20/U1/4-2550-B-W4 PRIMARY | Stauff Corp (USA) |
| Reference | Meaning |
|---|---|
| SMS-20/U 1/4-2550MM B/V2A | 3/9 Design control — primary reference Stauff Corp |
NSN 4720-01-697-3607 is a Hose Assembly,nonmetallic, manufactured by Stauff Corp, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-697-3607 has 1 manufacturer part number on file: SMS-20/U1/4-2550-B-W4 (Stauff Corp).
Key specifications for SMS-20/U1/4-2550-B-W4: Measuring Method and Length: 2550.0 MILLIMETERS NOMINAL WORKING MM; Temp Rating: -31.0 FAHRENHEIT AND 212.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 0.790 INCHES IN; Connection Style: SWIVEL NUT FLARE SECOND END. 26 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.