The Nut,union, cataloged under National Stock Number 4730-01-234-4755, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-234-4755 |
| Item Name | Nut,union |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Width Across Flats | 2.375 INCHES NOMINAL IN |
| Nominal Thread Size | 1.875 INCHES IN |
| Nut Height | 0.812 INCHES NOMINAL IN |
| Nut Style | HEXAGON |
| Material | STEEL COMP 304 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| H840N-24-SS | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 7863-28902-105 | 5/9 Secondary reference U.S. Government activity |
| 7863-28902-105 | 5/9 Secondary reference Gulf Coast Holdings, Inc Dba Unidynamics |
| 7683-28902-105 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company |
| 7683-28902-105 | C/1 Advisory reference — outside the item-of-supply concept Gulf Coast Holdings, Inc Dba Unidynamics |
| H850N-24-SS | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-234-4755 is a Nut,union, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-234-4755: Width Across Flats: 2.375 INCHES NOMINAL IN; Nominal Thread Size: 1.875 INCHES IN; Nut Height: 0.812 INCHES NOMINAL IN; Nut Style: HEXAGON. 5 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.