The Stem,fluid Valve, cataloged under National Stock Number 4820-01-154-9749, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-154-9749 |
| Primary Part Number | 87643-9803 ITEM 14 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Largest Outside Diameter | 2.880 INCHES NOMINAL IN |
| Material | NICKEL ALLOY |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4675791 | Naval Ship Systems Command (USA) |
| 87643-9803 ITEM 14 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 87643-9803 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 501-4675791 ITEM 14 PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-01-154-9749 is a Stem,fluid Valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-154-9749 has 4 cross-referenced part numbers: 4675791 (Naval Ship Systems Command), 87643-9803 ITEM 14 (Electric Boat Corporation Div General Dynamics Electric Boat), 87643-9803 (Electric Boat Corporation Div General Dynamics Electric Boat), 501-4675791 ITEM 14 (Naval Ship Systems Command).
There are 5 known substitutes for 4820-01-154-9749: 4820-01-137-6055, 4820-01-154-9750, 4820-01-155-3666 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 87643-9803 ITEM 14: Largest Outside Diameter: 2.880 INCHES NOMINAL IN; Material: NICKEL ALLOY; Overall Length: 13.560 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY. 4 total characteristics are documented in the Federal Logistics Information System.