The Valve,check, cataloged under National Stock Number 4820-01-218-9929, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-218-9929 |
| Primary Part Number | 2410919-3 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Criticality Code Justification | ZZZY |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | NITROGEN, LIQUID FIRST RESPONSE |
| Media for Which Designed | OXYGEN, LIQUID SECOND RESPONSE |
| Material | COPPER ALLOY BODY |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2410919-3 | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| Reference | Meaning |
|---|---|
| 2410919-3CP | 3/1 Design control — primary reference Naval Inventory Control Point Mechanicsburg |
NSN 4820-01-218-9929 is a Valve,check, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-218-9929 has 1 manufacturer part number on file: 2410919-3 (Cosmodyne, Llc Dba Cosmodyne Llc).
Key specifications for 2410919-3: Flow Control Device: DISK; Criticality Code Justification: ZZZY; Style Designator: STRAIGHT THRU; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 8 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.