The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-231-2771, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Textron Aviation Inc. Government technical data includes 23 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-231-2771 |
| Primary Part Number | 330995F4-0272 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Measuring Method and Length | 27.125 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 2.000 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| Supplementary Features | THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 98441 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984 |
| Layer Composition and Location | 1ST LAYER BRAIDED FIBER AND 2ND LAYER BRAIDED WIRE AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 0.472 INCHES NOMINAL IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Exterior Color | BLACK |
| Specification/standard Data | 70898-330995 MANUFACTURERS STANDARD |
| Inside Diameter | 0.190 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Hydrostatic Test Pressure | 3000.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 6000.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | OIL RESISTANT |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| 330995F4-0272 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 330995 | 5/9 Secondary reference Beechcraft Corporation Dba Textron Aviation |
| 130F001-4S0272 | 3/2 Design control — primary reference U.S. Government activity |
| 330995 | 5/1 Secondary reference Textron Aviation Inc |
| 330995F4-0272 | 5/9 Secondary reference Beechcraft Corporation Dba Textron Aviation |
NSN 4720-01-231-2771 is a Hose Assembly,nonmetallic, manufactured by Textron Aviation Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-231-2771 has 1 manufacturer part number on file: 330995F4-0272 (Textron Aviation Inc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-503-1903. Verify interchangeability with system specifications before substitution.
Key specifications for 330995F4-0272: Measuring Method and Length: 27.125 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 2.000 INCHES IN; Connection Style: SWIVEL NUT FLARE FIRST END. 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.