The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-458-5544, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Allied Systems Company Dba Allied Systems Co. Government technical data includes 24 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-458-5544 |
| Primary Part Number | 235971 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Allied Systems Company Dba Allied Systems Co |
| Status | ACTIVE |
| Measuring Method and Length | 172.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Thickness | 0.625 INCHES NOMINAL SECOND END IN |
| Minimum Inside Bending Radius | 16.500 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| Flange Outside Diameter | 2.000 INCHES NOMINAL SECOND END IN |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER SPIRALLY LAID STEEL WIRE AND 2ND LAYER SPIRALLY LAID STEEL WIRE AND 3RD LAYER SPIRALLY LAID STEEL WIRE AND 4TH LAYER SPIRALLY LAID STEEL WIRE AND OUTER LAYER MOLDED RUBBER, SYNTHETIC |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.850 INCHES NOMINAL IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| End Fitting Component and Material | COMPLETE FITTING STEEL CORROSION RESISTING ALL ENDS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Exterior Color | BLACK |
| Specification/standard Data | SAE100R12 NATIONAL STD/SPEC |
| Inside Diameter | 1.250 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON AND WATER AND AIR SINGLE RESPONSE |
| Hydrostatic Test Pressure | 6000.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 12000.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT 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 |
|---|---|
| 235971 PRIMARY | Allied Systems Company Dba Allied Systems Co (USA) |
| Reference | Meaning |
|---|---|
| F772-2-24-24 172IN.SS | 5/9 Secondary reference U.S. Government activity |
| F772-2-24-24 172IN.SS | 3/2 Design control — primary reference U.S. Government activity |
| 46-AA24-24-172IN.SS | 3/1 Design control — primary reference Allied Systems Company Dba Allied Systems Co |
NSN 4720-01-458-5544 is a Hose Assembly,nonmetallic, manufactured by Allied Systems Company Dba Allied Systems Co, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-458-5544 has 1 manufacturer part number on file: 235971 (Allied Systems Company Dba Allied Systems Co).
1 possible match (shared part number, not a government interchangeability claim): 1005-01-589-6997. Verify interchangeability with system specifications before substitution.
Key specifications for 235971: Measuring Method and Length: 172.000 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF; Flange Thickness: 0.625 INCHES NOMINAL SECOND END IN; Minimum Inside Bending Radius: 16.500 INCHES IN. 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.