The Cap,valve, cataloged under National Stock Number 4820-01-155-8816, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-155-8816 |
| Primary Part Number | 2640-271PC4 |
| Item Name | Cap,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Material | NICKEL ALLOY |
| Outside Diameter | 4.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2640-271PC4 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| SS845-2007693 | Naval Ship Systems Command (USA) |
| SS845-2007693 PIECE 4 PRIMARY | Naval Ship Systems Command (USA) |
NSN 4820-01-155-8816 is a Cap,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-155-8816 has 3 cross-referenced part numbers: 2640-271PC4 (Electric Boat Corporation Div General Dynamics Electric Boat), SS845-2007693 (Naval Ship Systems Command), SS845-2007693 PIECE 4 (Naval Ship Systems Command).
There are 3 known substitutes for 4820-01-155-8816: 4820-01-156-0562, 4820-01-156-0574, 4820-01-156-5885. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-271PC4: Overall Length: 2.687 INCHES NOMINAL IN; Material: NICKEL ALLOY; Outside Diameter: 4.500 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.