The Coupling,pipe, cataloged under National Stock Number 4730-01-099-3046, 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 Kidde-Fenwal, Llc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-099-3046 |
| Primary Part Number | WK-521708-000 |
| Item Name | Coupling,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Style | SOCKET BRAZING RING (PIPE) FIRST END |
| Nominal Overall Length | 1.680 INCHES IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Style Designator | GROOVED AND THREADED EXTERNAL |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE STD FIRST END |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | NPT SECOND END |
| 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 |
|---|---|
| WK-521708-000 PRIMARY | Kidde-Fenwal, Llc (USA) |
| Reference | Meaning |
|---|---|
| 5217-0800 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| 5217-0800 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-099-3046 is a Coupling,pipe, manufactured by Kidde-Fenwal, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-099-3046 has 1 manufacturer part number on file: WK-521708-000 (Kidde-Fenwal, Llc).
Key specifications for WK-521708-000: Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN; Connection Style: PLAIN (PIPE) SECOND END; Connection Style: SOCKET BRAZING RING (PIPE) FIRST END; Nominal Overall Length: 1.680 INCHES IN. 11 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.