The Adapter Bushing, cataloged under National Stock Number 4730-01-090-8366, 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 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-090-8366 |
| Primary Part Number | 4623-J |
| Item Name | Adapter Bushing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.875 INCHES NOMINAL IN |
| Male End Thread Size | 1.281-12 |
| Wrenching Facility Diameter | 1.875 INCHES NOMINAL IN |
| Female End Thread Length | 0.875 INCHES NOMINAL IN |
| Female End Thread Class | 3B |
| Male End Thread Direction | RIGHT-HAND |
| Female End Thread Size | 0.875-10 |
| Wrenching Facility Shape | HEXAGON |
| Male End Screw Thread Series Designator | UN |
| Chamfer Angle in Deg | 45.0 LOCATION NOT OTHERWISE SPECIFIED |
| Female End Screw Thread Series Designator | UNS |
| Male End Thread Class | 3A A |
| Female End Thread Direction | RIGHT-HAND |
| Material | COPPER ALLOY |
| Male End Thread Length | 1.281 INCHES NOMINAL IN |
| Thickness | 0.250 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 |
|---|---|
| 4623-J PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 80000-01 PIECE 8 2IN | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4623-J-371 | 5/9 Secondary reference Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
NSN 4730-01-090-8366 is a Adapter Bushing, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-090-8366 has 2 manufacturer part numbers on file: 4623-J (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 80000-01 PIECE 8 2IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
Key specifications for 4623-J: Width Across Flats: 1.875 INCHES NOMINAL IN; Male End Thread Size: 1.281-12; Wrenching Facility Diameter: 1.875 INCHES NOMINAL IN; Female End Thread Length: 0.875 INCHES NOMINAL IN. 16 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.