The Deck Box Operator,valve, cataloged under National Stock Number 4820-01-412-3888, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is B.w. Elliott Manufacturing Co., Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-412-3888 |
| Primary Part Number | 12791 ASSY B-800-12791-400 |
| Item Name | Deck Box Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| Mechanical Connection Type | FLEXIBLE SHAFT |
| Accommodated Shaft Diameter | 0.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 12791 ASSY B-800-12791-400 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| 500-6574890 FIND NO.236 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| B-800-12791-400 | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
NSN 4820-01-412-3888 is a Deck Box Operator,valve, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-412-3888 has 2 manufacturer part numbers on file: 12791 ASSY B-800-12791-400 (B.w. Elliott Manufacturing Co., Llc), 500-6574890 FIND NO.236 (Naval Sea Systems Command).
Key specifications for 12791 ASSY B-800-12791-400: Mechanical Connection Type: FLEXIBLE SHAFT; Accommodated Shaft Diameter: 0.500 INCHES NOMINAL IN; Material: COPPER ALLOY. 3 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.