The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-428-6944, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Transdigm Inc Div Adelwiggins Group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4720-01-428-6944 |
| Primary Part Number | 6373-28 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES FIRST END |
| Measuring Method and Length | 76.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Thickness | 0.500 INCHES NOMINAL FIRST END IN |
| Minimum Inside Bending Radius | 15.000 INCHES IN |
| Connection Style | PLAIN FIRST END |
| Flange Outside Diameter | 7.688 INCHES NOMINAL FIRST END IN |
| End Connection Design | ELBOW FIRST END |
| Layer Composition and Location | OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE |
| Angle Between Rigid Elbow Fittings in Deg | 0.0 |
| Connection Type | PLAIN FACE FLANGE FIRST END |
| Bolt Hole Diameter | 0.562 INCHES NOMINAL FIRST END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 3.500 INCHES NOMINAL IN |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Inside Diameter | 3.000 INCHES NOMINAL IN |
| Inside Surface Condition | CONVOLUTED |
| Bolt Hole Quantity | 8 FIRST END |
| Bolt Circle Diameter | 6.562 INCHES NOMINAL FIRST END IN |
| Hydrostatic Test Pressure | 400.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 800.0 POUNDS PER SQUARE INCH LBS |
| Flange Style | ROUND W / BOLT HOLES FIRST END |
| End Flange Construction | SOLID 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 |
| Part Number | Manufacturer |
|---|---|
| HR90-28 | Hampton Rubber Company Dba Hampton Rubber Co Div Hampton Rubber Company(norfolk) (USA) |
| WHGP-U64J-28 | Westflex, Inc. Dba Western Hose & Gasket (USA) |
| 6373-28 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| Reference | Meaning |
|---|---|
| 6373 | D/9 Drawing number reference only Transdigm Inc Div Adelwiggins Group |
NSN 4720-01-428-6944 is a Hose Assembly,nonmetallic, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-428-6944 has 3 manufacturer part numbers on file: HR90-28 (Hampton Rubber Company Dba Hampton Rubber Co Div Hampton Rubber Company(norfolk)), WHGP-U64J-28 (Westflex, Inc. Dba Western Hose & Gasket), 6373-28 (Transdigm Inc Div Adelwiggins Group).
Key specifications for 6373-28: Flow Angle: 90.0 DEGREES FIRST END; Measuring Method and Length: 76.000 INCHES NOMINAL OVERALL IN; Temp Rating: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF; Flange Thickness: 0.500 INCHES NOMINAL FIRST END IN. 23 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.