The Hose,preformed, cataloged under National Stock Number 4720-00-470-7149, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4720-00-470-7149 |
| Primary Part Number | 2N1957 |
| Item Name | Hose,preformed |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Wall Thickness | 0.219 INCHES NOMINAL IN |
| Inside Diameter | 2.531 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC COVER |
| Material | RUBBER SYNTHETIC OVERALL |
| Second Arm Length | 3.000 INCHES NOMINAL IN |
| Working Length | 9.000 INCHES NOMINAL IN |
| First Arm Length | 1.500 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2N1957 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| 2N1957 | 5/9 Secondary reference Holt Bros |
NSN 4720-00-470-7149 is a Hose,preformed, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-00-470-7149 has 1 manufacturer part number on file: 2N1957 (Caterpillar Inc Div Caterpillar Defense).
Key specifications for 2N1957: Wall Thickness: 0.219 INCHES NOMINAL IN; Inside Diameter: 2.531 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC COVER; Material: RUBBER SYNTHETIC OVERALL. 7 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.