The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-019-2149, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Navpar Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-019-2149 |
| Primary Part Number | CB57043174-20 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Navpar Inc |
| Status | ACTIVE |
| Flow Angle | 45.0 DEGREES FIRST END |
| Measuring Method and Length | 137.000 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 7.000 INCHES IN |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | ELBOW FIRST END |
| Vacuum in Torr | 127.0 |
| Layer Composition and Location | 1ST LAYER BRAIDED WIRE AND 2ND LAYER BRAIDED FABRIC AND OUTER LAYER MOLDED RUBBER, CHLOROPRENE |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Operating Pressure | 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | ELECTROSTATIC DISCHARGE CAPABILITY AND REUSABLE END FITTINGS |
| Seat Angle | 37.0 DEGREES FIRST END |
| Exterior Color | BLACK |
| Inside Surface Condition | SMOOTH |
| Hydrostatic Test Pressure | 700.0 POUNDS PER SQUARE INCH LBS |
| Burst Test Pressure | 16000.0 POUNDS PER SQUARE INCH LBS |
| Outer Covering Environmental Protection | ABRASION RESISTANT AND CORROSION RESISTANT |
| 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 |
|---|---|
| CB57043174-20 PRIMARY | Navpar Inc (USA) |
| CB57-43174-20 PRIMARY | Navpar Inc (USA) |
| Reference | Meaning |
|---|---|
| CB57-43171PC8 | 5/9 Secondary reference U.S. Government activity |
| CB57-43171 | D/9 Drawing number reference only U.S. Government activity |
| CB57-43174-20 | 5/9 Secondary reference U.S. Government activity |
NSN 4720-01-019-2149 is a Hose Assembly,nonmetallic, manufactured by Navpar Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-019-2149 has 2 manufacturer part numbers on file: CB57043174-20 (Navpar Inc), CB57-43174-20 (Navpar Inc).
4 possible matches (shared part number, not a government interchangeability claim): 4720-01-019-2719, 4720-01-019-2720, 4720-01-025-0273. Verify interchangeability with system specifications before substitution.
Key specifications for CB57043174-20: Flow Angle: 45.0 DEGREES FIRST END; Measuring Method and Length: 137.000 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 7.000 INCHES IN. 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.