The Valve,check, cataloged under National Stock Number 4820-01-420-3087, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Kf Industries Dba Contromatics. Government technical data includes 15 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 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 | 4820-01-420-3087 |
| Primary Part Number | 7093-1179P41912 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Kf Industries Dba Contromatics |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND ALL ENDS |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | ASTM A494, -35-1 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | ASTM B148, C95500 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 8.000 INCHES IN |
| Nominal Outside Diameter | 11.000 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Face to Face Distance | 5.000 INCHES IN |
| Material | NICKEL ALLOY FLOW CONTROL DEVICE |
| Material | COPPER ALLOY 955 BODY |
| 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 |
|---|---|
| 7093-1179P41912 PRIMARY | Kf Industries Dba Contromatics (USA) |
NSN 4820-01-420-3087 is a Valve,check, manufactured by Kf Industries Dba Contromatics, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-420-3087 has 1 manufacturer part number on file: 7093-1179P41912 (Kf Industries Dba Contromatics).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-420-5215. Verify interchangeability with system specifications before substitution.
Key specifications for 7093-1179P41912: Flow Control Device: DISK; Flange Shape: ROUND ALL ENDS; Mounting Position: HORIZONTAL OR VERTICAL; Connection Type: FLANGE ALL ENDS. 15 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.