The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-01-261-6569, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Eaton Corp Industrial Polymer Products Div. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-261-6569 |
| Primary Part Number | 3903-05546 |
| Item Name | Adapter,straight,tube to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Corp Industrial Polymer Products Div |
| Status | ACTIVE |
| Connection Style | SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END |
| Connection Style | SOCKET (HOSE) SECOND END |
| Nominal Inside Diameter Hose Accommodated | 0.312 INCHES SECOND END IN |
| Connection Type | UNTHREADED INTERNAL HOSE SECOND END |
| Connection Type | THREADED INTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.562 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Thread Class | 2B FIRST END |
| Thread Series Designator | UNF 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 |
|---|---|
| 316881 | Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA) |
| 3903-05546 PRIMARY | Eaton Corp Industrial Polymer Products Div (USA) |
| Reference | Meaning |
|---|---|
| 316881 | 5/9 Secondary reference Hyster-Yale Group, Inc. |
NSN 4730-01-261-6569 is a Adapter,straight,tube to Hose, manufactured by Eaton Corp Industrial Polymer Products Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-261-6569 has 2 manufacturer part numbers on file: 316881 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 3903-05546 (Eaton Corp Industrial Polymer Products Div).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-3313. Verify interchangeability with system specifications before substitution.
Key specifications for 3903-05546: Connection Style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END; Connection Style: SOCKET (HOSE) SECOND END; Nominal Inside Diameter Hose Accommodated: 0.312 INCHES SECOND END IN; Connection Type: UNTHREADED INTERNAL HOSE SECOND END. 10 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.