The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-281-7875, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 21 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-281-7875 |
| Primary Part Number | 2018-20F-33 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Unable to Decode | UNABLE TO DECODE |
| Minimum Inside Bending Radius | 2.500 INCHES IN |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 1ST LAYER BRAIDED FIBER AND 2ND LAYER BRAIDED FIBER AND OUTER LAYER MOLDED POLYURETHANE |
| Operating Pressure | 2500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Inside Surface Condition | SMOOTH |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| Unable to Decode | UNABLE TO DECODE |
| Hydrostatic Test Pressure | 5000.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 10000.0 POUNDS PER SQUARE INCH LBS |
| Unable to Decode | UNABLE TO DECODE |
| Outer Covering Environmental Protection | OIL RESISTANT AND OZONE RESISTANT |
| Unable to Decode | UNABLE TO DECODE |
| 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 |
|---|---|
| 2018-20F-33 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 335S-06546D06-28 | 3/9 Design control — primary reference U.S. Government activity |
| 358P-06-546-D06-28 | 3/2 Design control — primary reference U.S. Government activity |
| 3500S-06-546-D0 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3500S-06-546-006-28 | 5/9 Secondary reference U.S. Government activity |
| 350S-06546D06-28 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-281-7875 is a Hose Assembly,nonmetallic, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-281-7875 has 1 manufacturer part number on file: 2018-20F-33 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 2018-20F-33: Unable to Decode: UNABLE TO DECODE; Minimum Inside Bending Radius: 2.500 INCHES IN; Unable to Decode: UNABLE TO DECODE; Unable to Decode: UNABLE TO DECODE. 21 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.