The Valve,check, cataloged under National Stock Number 4820-01-398-8456, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-398-8456 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| 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 |
|---|---|
| 25307 FIG K15SMF-502 10IN | 3/9 Design control — primary reference Mcc Holdings, Inc. Dba Crane Valve North America Div Crane Chempharma & Energy |
| K15 SMF-502 10I | C/1 Advisory reference — outside the item-of-supply concept Mcc Holdings, Inc. Dba Crane Valve North America Div Crane Chempharma & Energy |
| K15SMF-502 10IN | C/1 Advisory reference — outside the item-of-supply concept Trw Inc Trw Mission Drillling Products Div |
| K15SMF-502 10IN MODEL A | 5/9 Secondary reference Trw Inc Trw Mission Drillling Products Div |
NSN 4820-01-398-8456 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-398-8456: Special Features: VALVE CHK 10IN MODEL A 150 DUO-CHK TYPE IN. 0 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.