The Nut,tube Coupling, cataloged under National Stock Number 4730-00-929-3367, 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 14 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-929-3367 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Length to Shoulder | 1.017 INCHES NOMINAL IN |
| Width Across Flats | 2.000 INCHES NOMINAL IN |
| Thread Series | UN |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.625 INCHES IN |
| Nut Height | 1.218 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 316 OVERALL |
| Smallest Inside Diameter | 1.347 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 1.250 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 |
| Reference | Meaning |
|---|---|
| AS4841 | 5/1 Secondary reference Sae International Dba Sae International |
| AN818-20K | 5/9 Secondary reference Collins Engineering Corp |
| AN818-20K | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| SAE-AS4841 | 5/1 Secondary reference Sae International Dba Sae International |
| AN818-20K | 2/2 Government specification standardization U.S. Government activity |
| AN818-20K | 5/1 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| AN818-20K | 5/1 Secondary reference Hydrasearch Company, Llc |
| AN818-20K | 5/9 Secondary reference Crown Fitting Co Inc |
| AN818-20K | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
NSN 4730-00-929-3367 is a Nut,tube Coupling, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-929-3367: Length to Shoulder: 1.017 INCHES NOMINAL IN; Width Across Flats: 2.000 INCHES NOMINAL IN; Thread Series: UN; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 14 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.