The Hose Assembly,nonmetallic, cataloged under National Stock Number 4720-01-235-3558, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Klein Products, Inc.. Government technical data includes 28 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-01-235-3558 |
| Primary Part Number | A-26421-4 |
| Item Name | Hose Assembly,nonmetallic |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Klein Products, Inc. |
| Status | ACTIVE |
| Measuring Method and Length | 18.656 INCHES NOMINAL OVERALL IN |
| Temp Rating | -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Minimum Inside Bending Radius | 7.375 INCHES IN |
| Connection Style | PLAIN SECOND END |
| Connection Style | SWIVEL NUT FLARE FIRST END |
| End Connection Design | STRAIGHT FIRST END |
| End Connection Design | STRAIGHT SECOND END |
| Layer Composition and Location | 1ST LAYER BRAIDED TEXTILE YARN AND 2ND LAYER BRAIDED WIRE AND OUTER LAYER RUBBER IMPREGNATED BRAIDED FABRIC |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Cross-Sectional Shape Style | ROUND |
| Outside Diameter | 1.230 INCHES NOMINAL IN |
| Operating Pressure | 800.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| Features Provided | REUSABLE END FITTINGS |
| Thread Direction | RIGHT-HAND SECOND END |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 1.312 INCHES FIRST END IN |
| Nominal Thread Size | 1.000 INCHES SECOND END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Inside Surface Condition | SMOOTH |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Hydrostatic Test Pressure | 1600.0 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3B FIRST END |
| Burst Test Pressure | 3200.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 12 FIRST END |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | NPTF SECOND 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 |
|---|---|
| A-26421-4 | Klein Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A-26421 | D/9 Drawing number reference only Klein Products, Inc. |
| 2010106-16-16-16-18.675 | 5/9 Secondary reference U.S. Government activity |
| 2010106-16-16-16-18 21/32 | 5/9 Secondary reference U.S. Government activity |
| 2010106-16-16-16-18.675 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4720-01-235-3558 is a Hose Assembly,nonmetallic, manufactured by Klein Products, Inc., classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-235-3558 has 1 manufacturer part number on file: A-26421-4 (Klein Products, Inc.).
Key specifications for A-26421-4: Measuring Method and Length: 18.656 INCHES NOMINAL OVERALL IN; Temp Rating: -40.0 FAHRENHEIT AND 300.0 FAHRENHEIT SINGLE RESPONSE DEGF; Minimum Inside Bending Radius: 7.375 INCHES IN; Connection Style: PLAIN SECOND END. 28 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.