The Valve,check, cataloged under National Stock Number 4820-00-124-1012, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is F.c.kingston Co. Dba Storm Manufacturing. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-124-1012 |
| Primary Part Number | 226-3-3 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | F.c.kingston Co. Dba Storm Manufacturing |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE BODY |
| Material Document and Classification | ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE |
| Material | COPPER ALLOY SEAT |
| 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 |
|---|---|
| 226-3-3 PRIMARY | F.c.kingston Co. Dba Storm Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 226300 | 5/9 Secondary reference F.c.kingston Co. Dba Storm Manufacturing |
NSN 4820-00-124-1012 is a Valve,check, manufactured by F.c.kingston Co. Dba Storm Manufacturing, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-124-1012 has 1 manufacturer part number on file: 226-3-3 (F.c.kingston Co. Dba Storm Manufacturing).
6 possible matches (shared part number, not a government interchangeability claim): 5977-00-128-0307, 4940-00-168-2541, 5850-00-831-2911. Verify interchangeability with system specifications before substitution.
Key specifications for 226-3-3: Flow Control Device: DISK; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Style Designator: STRAIGHT THRU; Material Document and Classification: ASTM B16 ASSN STD SINGLE MATERIAL RESPONSE BODY. 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.