The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-127-5154, 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 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-127-5154 |
| Primary Part Number | S-91XW FIG 11506 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Grove Valve Operations |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | ANGLE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | OPTIONAL END |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 200.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | UNABLE TO DECODE |
| End Connection Quantity | 2 |
| Valve Loading Method | DOME |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | STEEL COMP 316 BODY |
| Material | PLASTIC TETRAFLUOROETHYLENE FLOW CONTROL DEVICE |
| Media for Which Designed | GAS, NONCORROSIVE AND LIQUID, NONCORROSIVE |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 1/4-18 NPTF FIRST END |
| 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 |
|---|---|
| 5192503 SHEET 1 PIECE 81 | Naval Sea Systems Command (USA) |
| S-91XW FIG 11506 PRIMARY | Grove Valve Operations (USA) |
| Reference | Meaning |
|---|---|
| 5192503 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-127-5154 is a Valve,regulating,fluid Pressure, manufactured by Grove Valve Operations, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-127-5154 has 2 manufacturer part numbers on file: 5192503 SHEET 1 PIECE 81 (Naval Sea Systems Command), S-91XW FIG 11506 (Grove Valve Operations).
Key specifications for S-91XW FIG 11506: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: ANGLE. 17 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.