The Blowdown Valve, cataloged under National Stock Number 4820-01-249-3824, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ingersoll-Rand Company- Parts. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-249-3824 |
| Primary Part Number | 42535922 |
| Item Name | Blowdown Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ingersoll-Rand Company- Parts |
| Status | ACTIVE |
| General Characteristics Item Description | STAINLESS STEEL |
| 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 |
|---|---|
| 42535922 PRIMARY | Ingersoll-Rand Company- Parts (USA) |
| Reference | Meaning |
|---|---|
| 39125703 | 5/9 Secondary reference Clark Equipment Co Div Doosan Infracore Portable Power |
| 39137302 | 5/9 Secondary reference Ingersoll-Rand Company- Parts |
| 39137302 | C/1 Advisory reference — outside the item-of-supply concept Ingersoll-Rand Company Dba Rotary Compressor Division |
NSN 4820-01-249-3824 is a Blowdown Valve, manufactured by Ingersoll-Rand Company- Parts, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-249-3824 has 1 manufacturer part number on file: 42535922 (Ingersoll-Rand Company- Parts).
Key specifications for 42535922: General Characteristics Item Description: STAINLESS STEEL. 1 specification is 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.