The Valve,check, cataloged under National Stock Number 4820-01-352-3708, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Core Industries Inc. Dba Mueller Steam Specialty. Government technical data includes 10 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-352-3708 |
| Primary Part Number | 4INC NO 101M-CP SILENT CHECK |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Core Industries Inc. Dba Mueller Steam Specialty |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Mounting Facility | WAFER |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY 836 SEAT |
| Material | COPPER ALLOY 922 BODY |
| Material | COPPER ALLOY 836 FLOW CONTROL DEVICE |
| 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 |
|---|---|
| 4INC NO 101M-CP SILENT CHECK PRIMARY | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
| ACV-2914 | Core Industries Inc. Dba Mueller Steam Specialty (USA) |
NSN 4820-01-352-3708 is a Valve,check, manufactured by Core Industries Inc. Dba Mueller Steam Specialty, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-352-3708 has 2 manufacturer part numbers on file: 4INC NO 101M-CP SILENT CHECK (Core Industries Inc. Dba Mueller Steam Specialty), ACV-2914 (Core Industries Inc. Dba Mueller Steam Specialty).
Key specifications for 4INC NO 101M-CP SILENT CHECK: Flow Control Device: DISK; Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: STRAIGHT THRU; Operating Pressure: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 10 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.