The Stem,fluid Valve, cataloged under National Stock Number 4820-01-391-9575, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-391-9575 |
| Primary Part Number | 147C669H01 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-C-24111, TYPE I, COND 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Largest Outside Diameter | 0.312 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 147C669H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 147C669H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-391-9575 is a Stem,fluid Valve, manufactured by Northrop Grumman Support Services Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-391-9575 has 1 manufacturer part number on file: 147C669H01 (Northrop Grumman Support Services Corp).
Key specifications for 147C669H01: Surface Treatment Document and Classification: MIL-C-24111, TYPE I, COND 3 MIL SPEC SINGLE TREATMENT RESPONSE; Largest Outside Diameter: 0.312 INCHES NOMINAL IN; End Item Identification: AN/TPS-43H&AN/TPS-72(V)MOBILE GROUND LONG RANGE SEARCH RADAR SETS; Material: ALUMINUM ALLOY. 3 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.