The Nut,tube Coupling, cataloged under National Stock Number 4730-00-153-3131, 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 General Electric Company. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-153-3131 |
| Primary Part Number | R260P04L |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Length to Shoulder | 0.512 INCHES NOMINAL IN |
| Width Across Flats | 0.564 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | AMS5642 ASSN STD 1ST MATERIAL RESPONSE OR AMS1797 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Nut Height | 0.610 INCHES NOMINAL IN |
| Surface Treatment | SILVER OVERALL |
| Precious Material and Location | SURFACE SILVER |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Smallest Inside Diameter | 0.394 INCHES NOMINAL IN |
| Nominal Tube Outside Diameter | 0.250 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 |
| Part Number | Manufacturer |
|---|---|
| R260P04L PRIMARY | General Electric Company (USA) |
NSN 4730-00-153-3131 is a Nut,tube Coupling, manufactured by General Electric Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-153-3131 has 1 manufacturer part number on file: R260P04L (General Electric Company).
Key specifications for R260P04L: Length to Shoulder: 0.512 INCHES NOMINAL IN; Width Across Flats: 0.564 INCHES NOMINAL IN; Thread Series: UNF; Material Document and Classification: AMS5642 ASSN STD 1ST MATERIAL RESPONSE OR AMS1797 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 15 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.