The Valve,check, cataloged under National Stock Number 4820-01-238-0154, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Avitest Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-238-0154 |
| Primary Part Number | B-M1200 PIECE 78 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Avitest Llc |
| Status | ACTIVE |
| Operating Pressure | 4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Flow Control Device | DISK |
| Disk Loading Method | SPRING |
| Valve Operation Method | AUTOMATIC |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2868 | Aviation Technology, Inc. (USA) |
| 2868 | Avitest Llc (USA) |
| S25A3.0/5 | Bosch Rexroth Corporation Div Industrial Hydraulics (USA) |
| B-M1200 PIECE 78 | Aviation Technology, Inc. (USA) |
| B-M1200 PIECE 78 PRIMARY | Avitest Llc (USA) |
NSN 4820-01-238-0154 is a Valve,check, manufactured by Avitest Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-238-0154 has 5 cross-referenced part numbers: 2868 (Aviation Technology, Inc.), 2868 (Avitest Llc), S25A3.0/5 (Bosch Rexroth Corporation Div Industrial Hydraulics), B-M1200 PIECE 78 (Aviation Technology, Inc.), B-M1200 PIECE 78 (Avitest Llc).
There are 11 known substitutes for 4820-01-238-0154: 5325-00-282-2132, 3040-00-423-8042, 5950-00-586-6943 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for B-M1200 PIECE 78: Operating Pressure: 4600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Flow Control Device: DISK; Disk Loading Method: SPRING; Valve Operation Method: AUTOMATIC. 6 total characteristics are documented in the Federal Logistics Information System.