The Valve,check, cataloged under National Stock Number 4820-01-508-8570, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Steam Economies Co (inc) Dba Seco. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-508-8570 |
| Primary Part Number | CON-150-B-M-1/8 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Steam Economies Co (inc) Dba Seco |
| Status | ACTIVE |
| Flow Control Device | PISTON |
| Furnished Items and Quantity | 1 SPRING |
| Connection Style | GASKET SEAL (HOSE) ALL ENDS |
| Supplementary Features | 2 INCH WRENCHING FLATS TO FACILITATE MOUNTING; OVERALL LENGTH 3 INCHES; 1.590 INCH INNER DIAMETER; THREADING IS 2X 1.500-11.5 NPT, EXTERNAL IN |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| CON-150-B-M-1/8 PRIMARY | Steam Economies Co (inc) Dba Seco (USA) |
| CON-150-B-M-1/8 | International Valve Corp Dba Check-All Valve Mfg. Co. (USA) |
| Reference | Meaning |
|---|---|
| 93016B4001 | 7/2 Vendor item drawing reference Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
NSN 4820-01-508-8570 is a Valve,check, manufactured by Steam Economies Co (inc) Dba Seco, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-508-8570 has 2 manufacturer part numbers on file: CON-150-B-M-1/8 (Steam Economies Co (inc) Dba Seco), CON-150-B-M-1/8 (International Valve Corp Dba Check-All Valve Mfg. Co.).
Key specifications for CON-150-B-M-1/8: Flow Control Device: PISTON; Furnished Items and Quantity: 1 SPRING; Connection Style: GASKET SEAL (HOSE) ALL ENDS; Supplementary Features: 2 INCH WRENCHING FLATS TO FACILITATE MOUNTING; OVERALL LENGTH 3 INCHES; 1.590 INCH INNER DIAMETER; THREADING IS 2X 1.500-11.5 NPT, EXTERNAL IN. 11 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.