The Parts Kit,steam Trap, cataloged under National Stock Number 4730-01-053-9209, 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 Proconex Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-053-9209 |
| Primary Part Number | YG963557-01A |
| Item Name | Parts Kit,steam Trap |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Proconex Inc |
| Status | ACTIVE |
| Component Quantity | 6 |
| Nonsupply Items and Quantities | PISTON VALVE 1;CONTROL CYLINDER 1;VALVE SEAT 1;LOCK NUT 1;CAP GASKET 1;LOCK PIN 1 |
| 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 |
|---|---|
| YG963557-01A PRIMARY | Proconex Inc (USA) |
| Reference | Meaning |
|---|---|
| D21719PC4T08AND | C/1 Advisory reference — outside the item-of-supply concept Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 963557-01 | 3/9 Design control — primary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| D21719 | D/9 Drawing number reference only Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 943281 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| D21719PC4T08AND10 | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| YWDX515XXX1-500AXXX | 5/9 Secondary reference Pentair Valves & Controls Us Lp Div Pentair Flow Control |
| 963557-01 .50IN | C/1 Advisory reference — outside the item-of-supply concept Pentair Valves & Controls Us Lp Div Pentair Flow Control |
NSN 4730-01-053-9209 is a Parts Kit,steam Trap, manufactured by Proconex Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-053-9209 has 1 manufacturer part number on file: YG963557-01A (Proconex Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-258-7324. Verify interchangeability with system specifications before substitution.
Key specifications for YG963557-01A: Component Quantity: 6; Nonsupply Items and Quantities: PISTON VALVE 1;CONTROL CYLINDER 1;VALVE SEAT 1;LOCK NUT 1;CAP GASKET 1;LOCK PIN 1. 2 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.