The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-554-9345, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-554-9345 |
| Primary Part Number | 7326639-11 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Measuring Method and Length | 53.250 INCHES NOMINAL WORKING IN |
| Temp Rating | -40.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 6.500 INCHES IN |
| Connection Style | GASKET SEAL / OPTIONAL END FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | OUTER LAYER MOLDED PLASTIC AND 1ST LAYER BRAIDED FIBER AND 2ND LAYER BRAIDED FIBER |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.138 INCHES NOMINAL IN |
| Operating Pressure | 2250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| 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 |
| Hydrostatic Test Pressure | 4500.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2B FIRST END |
| Burst Test Pressure | 9000.0 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 |
|---|---|
| 7326639-11 PRIMARY | Naval Sea Systems Command (USA) |
| 7326639-11 | Hydrasearch Company, Llc (USA) |
| 6391034 FH-48 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5793195-01 FIND 035 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4720-01-554-9345 is a Hose Assembly,nonmetallic, manufactured by Naval Sea Systems Command, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-554-9345 has 3 manufacturer part numbers on file: 7326639-11 (Naval Sea Systems Command), 7326639-11 (Hydrasearch Company, Llc), 6391034 FH-48 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-555-4422. Verify interchangeability with system specifications before substitution.
Key specifications for 7326639-11: Measuring Method and Length: 53.250 INCHES NOMINAL WORKING IN; Temp Rating: -40.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 6.500 INCHES IN; Connection Style: GASKET SEAL / OPTIONAL END FIRST END. 18 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.