The Coupling Half,self-Sealing, cataloged under National Stock Number 4730-01-255-8986, 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 Transdigm Inc Div Adelwiggins Group. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-255-8986 |
| Primary Part Number | R255R117WD6 |
| Item Name | Coupling Half,self-Sealing |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Transdigm Inc Div Adelwiggins Group |
| Status | ACTIVE |
| Connection Style | FLARE ALL ENDS |
| Connection Type | THREADED INTERNAL TUBE FIRST FLUID END CONNECTION |
| Style Designator | MALE COUPLING HALF |
| Material Document and Classification | ASTM A 582 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.562 INCHES ALL ENDS IN |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL CORROSION RESISTING BODY |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS |
| 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 |
|---|---|
| R255R117WD6 PRIMARY | Transdigm Inc Div Adelwiggins Group (USA) |
| RR12D06E | Lkr, Inc. Dba Lkr Inc Div Raycon Industries (USA) |
| Reference | Meaning |
|---|---|
| 5204633-1 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
NSN 4730-01-255-8986 is a Coupling Half,self-Sealing, manufactured by Transdigm Inc Div Adelwiggins Group, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-255-8986 has 2 manufacturer part numbers on file: R255R117WD6 (Transdigm Inc Div Adelwiggins Group), RR12D06E (Lkr, Inc. Dba Lkr Inc Div Raycon Industries).
Key specifications for R255R117WD6: Connection Style: FLARE ALL ENDS; Connection Type: THREADED INTERNAL TUBE FIRST FLUID END CONNECTION; Style Designator: MALE COUPLING HALF; Material Document and Classification: ASTM A 582 ASSN STD SINGLE MATERIAL RESPONSE BODY. 10 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.