The Valve,check, cataloged under National Stock Number 4820-00-137-9629, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Continental Electronics Corp. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-137-9629 |
| Primary Part Number | 411-1372 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Continental Electronics Corp |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.750 INCHES ALL ENDS IN |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | WEIGHT |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | COPPER ALLOY 836 BODY |
| Material | COPPER ALLOY 836 SEAT |
| 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 |
|---|---|
| 411-1372 | Continental Electronics Corp (USA) |
| Reference | Meaning |
|---|---|
| S413B3-4 | 3/9 Design control — primary reference Nibco Inc |
NSN 4820-00-137-9629 is a Valve,check, manufactured by Continental Electronics Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-137-9629 has 1 manufacturer part number on file: 411-1372 (Continental Electronics Corp).
1 possible match (shared part number, not a government interchangeability claim): 7510-01-083-7849. Verify interchangeability with system specifications before substitution.
Key specifications for 411-1372: Flow Control Device: DISK; Connection Style: SOCKET (TUBE) ALL ENDS; Style Designator: STRAIGHT THRU; Nominal Outside Diameter Tube Accommodated: 0.750 INCHES ALL ENDS 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.