The Gear Operator,valve, cataloged under National Stock Number 4820-01-412-3889, 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 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-412-3889 |
| Primary Part Number | 12102-400 |
| Item Name | Gear Operator,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| Gear Type | WORM |
| Features Provided | HANDWHEEL |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Material | STEEL |
| 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 |
|---|---|
| 500-6574890 FIND NO.111 | Naval Sea Systems Command (USA) |
| 12102-400 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| Reference | Meaning |
|---|---|
| 12102-1400 | C/1 Advisory reference — outside the item-of-supply concept B.w. Elliott Manufacturing Co., Llc |
NSN 4820-01-412-3889 is a Gear Operator,valve, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-412-3889 has 2 manufacturer part numbers on file: 500-6574890 FIND NO.111 (Naval Sea Systems Command), 12102-400 (B.w. Elliott Manufacturing Co., Llc).
Key specifications for 12102-400: Gear Type: WORM; Features Provided: HANDWHEEL; Valve Size for Which Designed: 0.500 INCHES IN; Special Features: THD EXT 0.312-18. 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.