The Valve,check, cataloged under National Stock Number 4820-01-142-7818, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 2 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-142-7818 |
| Primary Part Number | 11487479 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Style Designator | STRAIGHT THRU |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 11487479 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 10371916 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 11487479 | 5/9 Secondary reference Shannon Mfg Co Inc |
| 11487479 | 5/1 Secondary reference Wego Precision Machine, Inc. |
| 11487479 | 5/1 Secondary reference Lee Precision Machine Shop Inc |
NSN 4820-01-142-7818 is a Valve,check, manufactured by Us Army Aviation and Missile Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-142-7818 has 1 manufacturer part number on file: 11487479 (Us Army Aviation and Missile Command).
Key specifications for 11487479: Flow Control Device: POPPET; Style Designator: STRAIGHT THRU. 2 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.
NSN 4820-01-142-7818 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.