The Trap,steam, cataloged under National Stock Number 4730-00-265-1899, 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 6 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-265-1899 |
| Item Name | Trap,steam |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Design Type | PULSATING CONTINUOUS FLOAT |
| Maximum Steam Working Pressure | ERR-060 |
| Body Design | STRAIGHT PATTERN |
| Rated Capacity at Maximum Working Pressure | 3870.000 POUNDS OF WATER PER HOUR LBS |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING WORKING PARTS |
| 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 |
|---|---|
| D20739 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| D20550 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 83S | 3/9 Design control — primary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 83SD21120 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| D21120 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
NSN 4730-00-265-1899 is a Trap,steam, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3120-00-733-8586. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-00-265-1899: Design Type: PULSATING CONTINUOUS FLOAT; Maximum Steam Working Pressure: ERR-060; Body Design: STRAIGHT PATTERN; Rated Capacity at Maximum Working Pressure: 3870.000 POUNDS OF WATER PER HOUR LBS. 6 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.