The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-052-4912, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Grove Valve Operations. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 10 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-052-4912 |
| Primary Part Number | 11399U2U03U2U075K |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Grove Valve Operations |
| Status | ACTIVE |
| Valve Stem Design | DOUBLE SEAT |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | SOCKET W/BRAZING RING |
| Second End Nominal Pipe Size Accommodated | 0.375 INCHES IN |
| End Connection Quantity | 2 |
| Valve Loading Method | DOME |
| Second End Style Designator | SOCKET W/BRAZING RING |
| First End Nominal Pipe Size Accommodated | 1.250 INCHES IN |
| Material | BRONZE SEAT |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 11399U2U03U2U075K PRIMARY | Grove Valve Operations (USA) |
| 11166U2U03U2U075K | Grove Valve Operations (USA) |
| Reference | Meaning |
|---|---|
| MILV2961 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-052-4912 is a Valve,regulating,fluid Pressure, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-052-4912 has 2 manufacturer part numbers on file: 11399U2U03U2U075K (Grove Valve Operations), 11166U2U03U2U075K (Grove Valve Operations).
10 possible matches (shared part number, not a government interchangeability claim): 4820-00-079-9458, 4820-00-288-6649, 4820-00-288-6661. Verify interchangeability with system specifications before substitution.
Key specifications for 11399U2U03U2U075K: Valve Stem Design: DOUBLE SEAT; Renewable Seat Ring Type: THREADED; Second End Relationship with First End: NOT IDENTICAL; Body Style: STRAIGHT THRU. 14 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.