The Nut,union, cataloged under National Stock Number 4730-01-160-6306, 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 Western Enterprises Div of Scott and Fetzer Co. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-160-6306 |
| Primary Part Number | 604 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Western Enterprises Div of Scott and Fetzer Co |
| Status | ACTIVE |
| Width Across Flats | 1.250 INCHES NOMINAL IN |
| Shoulder Step Width | 0.197 INCHES NOMINAL IN |
| Shoulder Width | 0.125 INCHES NOMINAL IN |
| Thread Series | NGO |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.035 INCHES IN |
| Nut Height | 0.728 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 14 |
| Material | COPPER ALLOY OVERALL |
| Smallest Inside Diameter | 0.766 INCHES MINIMUM AND 0.776 INCHES MAXIMUM IN |
| Shoulder Seat Diameter | 1.230 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 |
|---|---|
| 604 PRIMARY | Western Enterprises Div of Scott and Fetzer Co (USA) |
| CGA-660 | Western Enterprises Div of Scott and Fetzer Co (USA) |
| Reference | Meaning |
|---|---|
| 05-010-006 | C/1 Advisory reference — outside the item-of-supply concept Global Fire Equipment Corp |
| N77 | 5/9 Secondary reference Superior Products Div Opw Ces |
NSN 4730-01-160-6306 is a Nut,union, manufactured by Western Enterprises Div of Scott and Fetzer Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-160-6306 has 2 manufacturer part numbers on file: 604 (Western Enterprises Div of Scott and Fetzer Co), CGA-660 (Western Enterprises Div of Scott and Fetzer Co).
1 possible match (shared part number, not a government interchangeability claim): 6680-01-231-5457. Verify interchangeability with system specifications before substitution.
Key specifications for 604: Width Across Flats: 1.250 INCHES NOMINAL IN; Shoulder Step Width: 0.197 INCHES NOMINAL IN; Shoulder Width: 0.125 INCHES NOMINAL IN; Thread Series: NGO. 13 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.