The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-330-6558, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-330-6558 |
| Primary Part Number | 23038690-2 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Measuring Method and Length | 29.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Flange Thickness | 0.312 INCHES NOMINAL FIRST END IN |
| Minimum Inside Bending Radius | 3.375 INCHES IN |
| Connection Style | RAISED FIRST END |
| Flange Outside Diameter | 3.094 INCHES NOMINAL FIRST END IN |
| End Connection Design | STRAIGHT FIRST END |
| Layer Composition and Location | 1ST LAYER POLYTETRAFLUOROETHYLENE IMPREGNATED GLASS FIBER AND OUTER LAYER RUBBER IMPREGNATED WIRE |
| Connection Type | RAISED FACE FLANGE FIRST END |
| Bolt Hole Diameter | 0.281 INCHES NOMINAL FIRST END IN |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.790 INCHES NOMINAL IN |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | ELECTROSTATIC DISCHARGE CAPABILITY |
| Inside Diameter | 1.500 INCHES NOMINAL IN |
| Inside Surface Condition | CONVOLUTED |
| Bolt Hole Quantity | 4 FIRST END |
| Raised Face Diameter | 2.880 INCHES NOMINAL FIRST END IN |
| Raised Face Height | 0.010 INCHES NOMINAL FIRST END IN |
| Hydrostatic Test Pressure | 300.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 600.0 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 |
|---|---|
| 23038690-2 PRIMARY | Rolls-Royce Corporation (USA) |
| CC060624SS0290F PRIMARY | Smiths Tubular Systems-Laconia, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 23038690 | D/9 Drawing number reference only Rolls-Royce Corporation |
| CC050524SS0290F | 5/9 Secondary reference Smiths Tubular Systems-Laconia, Inc. |
NSN 4720-01-330-6558 is a Hose Assembly,nonmetallic, manufactured by Rolls-Royce Corporation, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-330-6558 has 2 manufacturer part numbers on file: 23038690-2 (Rolls-Royce Corporation), CC060624SS0290F (Smiths Tubular Systems-Laconia, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4720-01-330-8129. Verify interchangeability with system specifications before substitution.
Key specifications for 23038690-2: Measuring Method and Length: 29.000 INCHES NOMINAL OVERALL IN; Temp Rating: -65.0 FAHRENHEIT AND 400.0 FAHRENHEIT SINGLE RESPONSE DEGF; Flange Thickness: 0.312 INCHES NOMINAL FIRST END IN; Minimum Inside Bending Radius: 3.375 INCHES 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.