The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-111-8512, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bimba Llc. Government technical data includes 22 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-111-8512 |
| Primary Part Number | MF1-12 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bimba Llc |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | ANY ACCEPTABLE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| Mounting Facility | INTERNAL THREAD |
| First End Connection Type | THREADED INTERNAL PIPE |
| Surface Treatment | ANODIZE OUTSIDE |
| Material | ALUMINUM SEAT |
| Material | ALUMINUM FLOW CONTROL DEVICE |
| Material | RUBBER BUTADIENE-STYRENE CLASS SBR PACKING |
| Media for Which Designed | AIR AND OIL |
| Maximum Inlet Pressure Rating | ERR-060 |
| Center to Center Distance | 2.000 INCHES NOMINAL IN |
| Thread Size and Series/type Designator | 1/8-27 NPT 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 |
|---|---|
| MF1-12 PRIMARY | Bimba Llc (USA) |
| Reference | Meaning |
|---|---|
| MF1-12 | 3/9 Design control — primary reference Mead Fluid Dynamics Div of Stanray Corp |
| 933C055264 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| 055264 | 7/2 Vendor item drawing reference L3 Technologies, Inc. Div L3 Keo |
NSN 4820-01-111-8512 is a Valve,regulating,fluid Pressure, manufactured by Bimba Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-111-8512 has 1 manufacturer part number on file: MF1-12 (Bimba Llc).
1 possible match (shared part number, not a government interchangeability claim): 4330-01-464-2032. Verify interchangeability with system specifications before substitution.
Key specifications for MF1-12: Flow Control Device: PISTON, SPRING LOADED; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: ANY ACCEPTABLE; First End Thread Direction: RIGHT-HAND. 22 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.