The Seal Nut,pipe, cataloged under National Stock Number 4730-01-272-6659, 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 Danfoss Power Solutions II, Llc. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-272-6659 |
| Primary Part Number | C3059X8 |
| Item Name | Seal Nut,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Series | NPT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.280 INCHES NOMINAL IN |
| Nut Style | PIPE SEAL NUT |
| Thread Quantity Per Inch | 14 |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP 12L14 NUT |
| 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 |
|---|---|
| C3059X8 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| JCM-11257-001 | Strike Weapons and Unmanned Aviation (USA) |
| Reference | Meaning |
|---|---|
| JCM-11257 | 7/1 Vendor item drawing reference Strike Weapons and Unmanned Aviation |
| JCM-11257-001 | C/1 Advisory reference — outside the item-of-supply concept Gulf Coast Holdings, Inc Dba Unidynamics |
| JCM-11257-001 | 5/9 Secondary reference U.S. Government activity |
| C3059X8 | 3/9 Design control — primary reference Dana Corp Weatherhead Div |
NSN 4730-01-272-6659 is a Seal Nut,pipe, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-272-6659 has 2 manufacturer part numbers on file: C3059X8 (Danfoss Power Solutions II, Llc), JCM-11257-001 (Strike Weapons and Unmanned Aviation).
Key specifications for C3059X8: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Series: NPT; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.500 INCHES IN. 9 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.