The Hose,preformed, cataloged under National Stock Number 4720-01-161-6678, is classified within Federal Supply Class 4720 (Hose and Flexible Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Dayco Products Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4720-01-161-6678 |
| Primary Part Number | 71038 |
| Item Name | Hose,preformed |
| FSC / FSG | 4720 / 47 — Hose and Flexible Tubing |
| Manufacturer | Dayco Products Inc |
| Status | ACTIVE |
| Outer Radius | 1.500 INCHES NOMINAL IN |
| Offset Distance | 1.000 INCHES NOMINAL IN |
| Style Designator | TWO BEND |
| Wall Thickness | 0.200 INCHES NOMINAL IN |
| Inside Diameter | 1.750 INCHES NOMINAL IN |
| Width | 8.000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC COVER |
| Material | RUBBER SYNTHETIC OVERALL |
| Bend Radius | 2.000 INCHES NOMINAL IN |
| Second Arm Length | 2.250 INCHES NOMINAL IN |
| Working Length | 7.750 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 |
|---|---|
| 71038 | Dayco Products Inc (USA) |
| Reference | Meaning |
|---|---|
| E0TZ-8286-A | 3/9 Design control — primary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| 71038 | 5/9 Secondary reference U.S. Government activity |
| E0TZ-8286-A | 5/9 Secondary reference Ford Motor Company |
NSN 4720-01-161-6678 is a Hose,preformed, manufactured by Dayco Products Inc, classified under FSC 4720, Hose and Flexible Tubing. Status: active.
NSN 4720-01-161-6678 has 1 manufacturer part number on file: 71038 (Dayco Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-381-4339. Verify interchangeability with system specifications before substitution.
Key specifications for 71038: Outer Radius: 1.500 INCHES NOMINAL IN; Offset Distance: 1.000 INCHES NOMINAL IN; Style Designator: TWO BEND; Wall Thickness: 0.200 INCHES NOMINAL IN. 12 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.