The Valve,check, cataloged under National Stock Number 4820-01-109-7375, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Thomas Industries Inc Pneumotive Div. Government technical data includes 13 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-109-7375 |
| Primary Part Number | C79274 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Thomas Industries Inc Pneumotive Div |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.375 INCHES FIRST END IN |
| Nominal Thread Size | 0.250 INCHES SECOND END IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Material | RUBBER FLOW CONTROL DEVICE |
| 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 |
|---|---|
| C79274 PRIMARY | Thomas Industries Inc Pneumotive Div (USA) |
| Reference | Meaning |
|---|---|
| C79274 | C/1 Advisory reference — outside the item-of-supply concept Itt Bell and Gosset-Hydronics a Unit of Itt Fluid Handling Div |
| C79274 | 5/9 Secondary reference Fl Industries Inc Pneumotive Div |
| C79274 | C/1 Advisory reference — outside the item-of-supply concept Sybron International Corp |
NSN 4820-01-109-7375 is a Valve,check, manufactured by Thomas Industries Inc Pneumotive Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-109-7375 has 1 manufacturer part number on file: C79274 (Thomas Industries Inc Pneumotive Div).
Key specifications for C79274: Flow Control Device: BALL; Connection Style: PLAIN (PIPE) ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: THREADED EXTERNAL PIPE ALL ENDS. 13 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.