The Disk,valve, cataloged under National Stock Number 4820-01-418-8888, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-418-8888 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Style Designator | SPLIT WEDGE |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| C8003-065-007 | 3/9 Design control — primary reference Newdell Company, the Dba Ladish Valves |
| C8003-065-007 | 5/9 Secondary reference U.S. Government activity |
| 8272-2014-80C ITEM 02 | 5/9 Secondary reference Newdell Company, the Dba Ladish Valves |
| 8272-2014-80C | D/9 Drawing number reference only Newdell Company, the Dba Ladish Valves |
NSN 4820-01-418-8888 is a Disk,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-418-8957, 4820-01-418-9548. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-418-8888: Overall Height: 7.500 INCHES NOMINAL IN; Style Designator: SPLIT WEDGE; Special Features: 316 STAINLESS STEEL, ASTM A351 CF8M SPLIT WEDGE DISC; USED ON 8.0IN.150.0LB O.S.Y. GATE VALVE NO.8272 LBS; End Item Identification: NAVY WEAPON SYSTEM CODE KK, 170.0FT PATROL COASTAL (PC-1) CALSS SHIPS FT. 2 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.