The Nut,tube Coupling, cataloged under National Stock Number 4730-01-291-5225, 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 Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-291-5225 |
| Primary Part Number | 12 100110B |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Series | UNS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.000 INCHES IN |
| Specification/standard Data | 81343-J246 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 11 FIGURE |
| Nut Height | 0.810 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| Material | COPPER ALLOY 360 OR COPPER ALLOY 377 OVERALL |
| Smallest Inside Diameter | 0.758 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 0.750 INCHES 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 |
|---|---|
| 12 100110B PRIMARY | Sae International Dba Sae International (USA) |
| 3326338 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| J246 | 5/9 Secondary reference U.S. Government activity |
| 61NTA-12 | 3/2 Design control — primary reference U.S. Government activity |
| 12 100110B | 5/9 Secondary reference U.S. Government activity |
| 3326338 | 5/9 Secondary reference Oshkosh Corp |
| J246 | 5/1 Secondary reference Sae International Dba Sae International |
NSN 4730-01-291-5225 is a Nut,tube Coupling, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-291-5225 has 2 manufacturer part numbers on file: 12 100110B (Sae International Dba Sae International), 3326338 (Oshkosh Defense Llc).
Key specifications for 12 100110B: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Series: UNS; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.000 INCHES IN. 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.