The Valve,check, cataloged under National Stock Number 4820-01-459-3181, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-459-3181 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Mounting Position | HORIZONTAL OR VERTICAL |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Operation Method | AUTOMATIC |
| Reference Number Differentiating Characteristics | AS DIFFERENTAITED BY NON-ASBESTOS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| B-100836 | D/9 Drawing number reference only Naval Inventory Control Point Mechanicsburg |
| 32719AB 31NCH CDS-B100836 | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 32719 3IN CDB100836 NON-ASBESTOS | 3/1 Design control — primary reference Crane Co Div Valve Div |
| 32719 | D/9 Drawing number reference only Crane Co Div Valve Div |
NSN 4820-01-459-3181 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-459-3181: Mounting Position: HORIZONTAL OR VERTICAL; End Item Identification: WSD NIMITZ CLASS CVN; Material: STEEL CORROSION RESISTING BODY; Valve Operation Method: AUTOMATIC. 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.