The Valve,check, cataloged under National Stock Number 4820-00-141-0570, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pall Aeropower Corporation. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-141-0570 |
| Primary Part Number | AC-9416-CV1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pall Aeropower Corporation |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | PLAIN (TUBE) FIRST END |
| Style Designator | STRAIGHT THRU |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Thread Direction | RIGHT-HAND SECOND END |
| Disk Loading Method | SPRING |
| Surface Treatment | ANODIZE |
| Thread Class | 3A SECOND END A |
| Material | ALUMINUM 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 |
|---|---|
| AC-9416-CV1 PRIMARY | Pall Aeropower Corporation (USA) |
NSN 4820-00-141-0570 is a Valve,check, manufactured by Pall Aeropower Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-141-0570 has 1 manufacturer part number on file: AC-9416-CV1 (Pall Aeropower Corporation).
Key specifications for AC-9416-CV1: Flow Control Device: POPPET; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: PLAIN (TUBE) FIRST END; Style Designator: STRAIGHT THRU. 11 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 4820-00-141-0570 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.