The Trap,steam, cataloged under National Stock Number 4730-00-288-9956, 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 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-288-9956 |
| Item Name | Trap,steam |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Design Type | THERMOSTATIC |
| Inlet Connection Type | GROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE |
| Thread Direction | RIGHT-HAND BOTH INLET AND OUTLET |
| Nondefinitive Spec/std Data | 5 TYPE AND 4 CLASS AND 1 INCH SIZE AND A STYLE OR B STYLE IN |
| Radiating Surface Area on Which Capacity Is Based | 100.0 SQUARE FEET |
| Maximum Steam Working Pressure | ERR-060 |
| Screw Thread Series Designator | NPT BOTH INLET AND OUTLET |
| Surface Treatment | NICKEL |
| Body Design | ANGLE PATTERN |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING WORKING PARTS |
| Outlet Connection Type | GROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE |
| 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 |
|---|---|
| WWT696 | 4/1 Identification reference U.S. Government activity |
NSN 4730-00-288-9956 is a Trap,steam, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-288-9956: Design Type: THERMOSTATIC; Inlet Connection Type: GROUND JOINT TAILPIECE W/UNION NUT AND FEMALE IRON PIPE; Thread Direction: RIGHT-HAND BOTH INLET AND OUTLET; Nondefinitive Spec/std Data: 5 TYPE AND 4 CLASS AND 1 INCH SIZE AND A STYLE OR B STYLE IN. 12 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.