The Valve,check, cataloged under National Stock Number 4820-01-032-4653, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydrasearch Company, Llc. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-032-4653 |
| Primary Part Number | 6KC66-2M PL1150 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydrasearch Company, Llc |
| Status | ACTIVE |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.375 INCHES IN |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| 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 |
|---|---|
| A6CC-2-M | Bec Systems Llc Dba Bec Machine Products (USA) |
| 6KC66-2M PL1150 PRIMARY | Hydrasearch Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 665-2-M/PL3351 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| A6CC-2-M | 5/9 Secondary reference American Piping Accessories Co Inc |
| 665-2M | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-032-4653 is a Valve,check, manufactured by Hydrasearch Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-032-4653 has 2 manufacturer part numbers on file: A6CC-2-M (Bec Systems Llc Dba Bec Machine Products), 6KC66-2M PL1150 (Hydrasearch Company, Llc).
Key specifications for 6KC66-2M PL1150: Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 0.375 INCHES IN; Maximum Operating Temp: 400.0 FAHRENHEIT SINGLE RESPONSE DEGF; Special Features: CARTRIDGE TYPE. 4 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.