The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-00-254-8639, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pacific Coast Optics. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-254-8639 |
| Primary Part Number | 106-EF |
| Item Name | Cock,shutoff,screw Stem |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Pacific Coast Optics |
| Status | CANCELLED |
| Valve Operation Method | MANUAL |
| Connection Style | SOCKET (TUBE) ALL ENDS |
| Flow Control Device | DISK OR STEM |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES ALL ENDS IN |
| Connection Type | UNTHREADED INTERNAL TUBE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Material | COPPER ALLOY OVERALL |
| Furnished Items and Quantity | 2 NUT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 106-EF PRIMARY | Pacific Coast Optics (USA) |
| 6765 | Danfoss Power Solutions II, Llc (USA) |
| 1025611 PRIMARY | Electromechanical Systems, Inc. (USA) |
| 4731APC9 | Fairbanks Morse, Llc (USA) |
| 6765 PRIMARY | Mid-State Sales, Inc. Div Defense Products Group (USA) |
| 2201X4 PRIMARY | United Technologies Automotive Inc Components Div (USA) |
| 6765 | Dana Corp Weatherhead Div (USA) |
| NV105C-4 | Parker-Hannifin Corp Div Fluid System Connector Division (USA) |
| 4731APC9 | Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA) |
NSN 4820-00-254-8639 is a Cock,shutoff,screw Stem, manufactured by Pacific Coast Optics, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-254-8639 has 9 cross-referenced part numbers: 106-EF (Pacific Coast Optics), 6765 (Danfoss Power Solutions II, Llc), 1025611 (Electromechanical Systems, Inc.), 4731APC9 (Fairbanks Morse, Llc), 6765 (Mid-State Sales, Inc. Div Defense Products Group) and 4 more.
There are 7 known substitutes for 4820-00-254-8639: 6685-00-264-3896, 5998-00-488-0748, 1680-00-572-6645 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 106-EF: Valve Operation Method: MANUAL; Connection Style: SOCKET (TUBE) ALL ENDS; Flow Control Device: DISK OR STEM; Nominal Outside Diameter Tube Accommodated: 0.250 INCHES ALL ENDS IN. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-254-8639 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.