The Adapter,straight,pipe to Hose, cataloged under National Stock Number 4730-00-028-3880, 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 Oshkosh Defense Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-028-3880 |
| Primary Part Number | 1778300 |
| Item Name | Adapter,straight,pipe to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Connection Style | PLAIN (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Overall Length | 1.062 INCHES IN |
| Nominal Thread Size | 0.625 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Thread Class | 2A SECOND END A |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT FIRST END |
| Thread Series Designator | UNF 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 |
|---|---|
| 1778300 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 3220574 | 5/9 Secondary reference General Motors Corp |
| 86633AS | 5/9 Secondary reference Arvinmeritor Inc |
| 2038807 | 5/9 Secondary reference Arvinmeritor Inc |
| F6772P18 | 5/9 Secondary reference Arvinmeritor Inc |
| F6418P11 | 5/9 Secondary reference Arvinmeritor Inc |
| 1778300 | 5/9 Secondary reference U.S. Government activity |
| 1681800 | 3/2 Design control — primary reference U.S. Government activity |
| 3220574 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 233-976 | 5/9 Secondary reference Arvinmeritor Inc |
| 158-3181 | 5/9 Secondary reference Arvinmeritor Inc |
| PR17783 | 5/9 Secondary reference Arvinmeritor Inc |
| 3220574 | 5/9 Secondary reference Arvinmeritor Inc |
| HR21156 | 5/9 Secondary reference Arvinmeritor Inc |
| A063180 | 5/9 Secondary reference Arvinmeritor Inc |
| 1778300 | 5/9 Secondary reference Oshkosh Corp |
NSN 4730-00-028-3880 is a Adapter,straight,pipe to Hose, manufactured by Oshkosh Defense Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-028-3880 has 1 manufacturer part number on file: 1778300 (Oshkosh Defense Llc).
4 possible matches (shared part number, not a government interchangeability claim): 6605-00-332-1668, 4920-00-872-7036, 4730-01-017-0483. Verify interchangeability with system specifications before substitution.
Key specifications for 1778300: Connection Style: PLAIN (HOSE) SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Nominal Overall Length: 1.062 INCHES IN; Nominal Thread Size: 0.625 INCHES SECOND END IN. 9 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.