The Valve,check, cataloged under National Stock Number 4820-01-446-1453, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is L3harris Technologies, Inc.. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-446-1453 |
| Primary Part Number | 1970AS292-2 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | L3harris Technologies, Inc. |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | STRAIGHT THRU |
| Disk Loading Method | SPRING |
| 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 |
|---|---|
| 1970AS292-2 PRIMARY | L3harris Technologies, Inc. (USA) |
| 1970AS292-2 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 1970AS292 | D/9 Drawing number reference only Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4820-01-446-1453 is a Valve,check, manufactured by L3harris Technologies, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-446-1453 has 2 manufacturer part numbers on file: 1970AS292-2 (L3harris Technologies, Inc.), 1970AS292-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1970AS292-2: Flow Control Device: DISK; Style Designator: STRAIGHT THRU; Disk Loading Method: SPRING; End Item Identification: AIRBORNE SELF PROTECTION JAMMER. 4 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.