The Coupling,actuator-Handwheel,valv, cataloged under National Stock Number 4820-01-255-7820, 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 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-255-7820 |
| Primary Part Number | 12137-510 |
| Item Name | Coupling,actuator-Handwheel,valv |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| Valve Type for Which Designed | RISING HANDWHEEL |
| Connector End Design | MALE |
| Features Provided | QUICK DISCONNECT |
| Connection Size | 0.625 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 |
|---|---|
| 12137-510 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| Reference | Meaning |
|---|---|
| 9788-310 | 5/9 Secondary reference Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
NSN 4820-01-255-7820 is a Coupling,actuator-Handwheel,valv, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-255-7820 has 1 manufacturer part number on file: 12137-510 (B.w. Elliott Manufacturing Co., Llc).
Key specifications for 12137-510: Valve Type for Which Designed: RISING HANDWHEEL; Connector End Design: MALE; Features Provided: QUICK DISCONNECT; End Item Identification: LOGISTICS SUPPORT VESSEL. 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.