The Valve,check, cataloged under National Stock Number 4820-01-115-7312, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-115-7312 |
| Primary Part Number | AV18A1128 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Style Designator | STRAIGHT THRU |
| Maximum Operating Temp | 1060.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | AIR SINGLE RESPONSE |
| Material | NICKEL ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| AV18A1128 PRIMARY | Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA) |
| Reference | Meaning |
|---|---|
| AV18A1128 | 5/9 Secondary reference Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S |
NSN 4820-01-115-7312 is a Valve,check, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-115-7312 has 1 manufacturer part number on file: AV18A1128 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
Key specifications for AV18A1128: Flow Control Device: DISK; Mounting Position: HORIZONTAL OR VERTICAL; Style Designator: STRAIGHT THRU; Maximum Operating Temp: 1060.0 FAHRENHEIT SINGLE RESPONSE DEGF. 7 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 4820-01-115-7312 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.