The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-555-6973, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-555-6973 |
| Primary Part Number | 7326639-47 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 29.750 INCHES NOMINAL WORKING IN |
| Temp Rating | 28.4 FAHRENHEIT AND 95.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 3.100 INCHES IN |
| Connection Style | GASKET SEAL / OPTIONAL END FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | OUTER LAYER BRAIDED CORROSION RESISTANT STEEL WIRE |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.060 INCHES NOMINAL IN |
| Operating Pressure | 1100.0 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 | 1.250 INCHES FIRST END IN |
| Inside Diameter | 0.750 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | REFRIGERANT 13 SINGLE RESPONSE |
| Hydrostatic Test Pressure | 2200.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 4400.0 POUNDS PER SQUARE INCH LBS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 7326639-47 | Hydrasearch Company, Llc (USA) |
| 7326639-47 PRIMARY | Naval Sea Systems Command (USA) |
NSN 4720-01-555-6973 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-555-6973 has 2 manufacturer part numbers on file: 7326639-47 (Hydrasearch Company, Llc), 7326639-47 (Naval Sea Systems Command).
Key specifications for 7326639-47: Measuring Method and Length: 29.750 INCHES NOMINAL WORKING IN; Temp Rating: 28.4 FAHRENHEIT AND 95.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 3.100 INCHES IN; Connection Style: GASKET SEAL / OPTIONAL END FIRST END. 20 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.