The Valve,shutoff, cataloged under National Stock Number 4820-01-185-2734, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Northrop Grumman Support Services Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,shutoff |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Northrop Grumman Support Services Corp (CAGE 48306) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-185-2734 |
| Primary Part Number | 138C952H01 |
| Item Name | Valve,shutoff |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 138C952H01 | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 138C952H01 | 5/9 Secondary reference U.S. Government activity |
| 242B2A | 3/9 Design control — primary reference Parker Hannifin Corp Hose Products Div |
NSN 4820-01-185-2734 is a Valve,shutoff, manufactured by Northrop Grumman Support Services Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-185-2734 has 1 manufacturer part number on file: 138C952H01 (Northrop Grumman Support Services Corp).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-387-9503. Verify interchangeability with system specifications before substitution.
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.