The Gear Operator,valve, cataloged under National Stock Number 4820-01-531-9878, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tufline Div of Xomox Corp. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-531-9878 |
| Primary Part Number | 333453 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tufline Div of Xomox Corp |
| Status | ACTIVE |
| Valve Type for Which Designed | BUTTERFLY |
| Valve Size for Which Designed | 8.000 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| RD12754-PL ITEM 24 | Tufline Div of Xomox Corp (USA) |
| 333453 PRIMARY | Tufline Div of Xomox Corp (USA) |
| Reference | Meaning |
|---|---|
| RD12754 | D/9 Drawing number reference only Worldwide Welding, Incorporated Div Lumax Lubrication Equipment |
NSN 4820-01-531-9878 is a Gear Operator,valve, manufactured by Tufline Div of Xomox Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-531-9878 has 2 manufacturer part numbers on file: RD12754-PL ITEM 24 (Tufline Div of Xomox Corp), 333453 (Tufline Div of Xomox Corp).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-531-9885, 4820-01-531-9896. Verify interchangeability with system specifications before substitution.
Key specifications for 333453: Valve Type for Which Designed: BUTTERFLY; Valve Size for Which Designed: 8.000 INCHES IN; Part Name Assigned by Controlling Agency: ENCLOSED GEAR OPERATOR; End Item Identification: 4820-01-531-9853, BUTTERFLY VALVE. 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.