The Retainer,seat,valve, cataloged under National Stock Number 4820-01-107-7001, 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 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-107-7001 |
| Primary Part Number | 2640-611 ASSYB PIECE 13 |
| Item Name | Retainer,seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Outside Diameter | 0.872 INCHES NOMINAL IN |
| Inside Diameter | 0.375 INCHES NOMINAL IN |
| Valve Model Number for Which Designed | SS845-2050997 |
| Nominal Thread Size | 1.375 INCHES IN |
| Material | COPPER ALLOY |
| Valve Design Control Activity | 80064 |
| Valve Size for Which Designed | 0.250 INCHES IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SS845-2050997ASSYB PIECE 13 | Naval Ship Systems Command (USA) |
| SS845-2050997 | Naval Ship Systems Command (USA) |
| 2640-611 ASSYB PIECE 13 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-107-7001 is a Retainer,seat,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-107-7001 has 3 cross-referenced part numbers: SS845-2050997ASSYB PIECE 13 (Naval Ship Systems Command), SS845-2050997 (Naval Ship Systems Command), 2640-611 ASSYB PIECE 13 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 4 known substitutes for 4820-01-107-7001: 4820-01-091-1306, 4730-01-096-3492, 4820-01-220-5540 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-611 ASSYB PIECE 13: Outside Diameter: 0.872 INCHES NOMINAL IN; Inside Diameter: 0.375 INCHES NOMINAL IN; Valve Model Number for Which Designed: SS845-2050997; Nominal Thread Size: 1.375 INCHES IN. 8 total characteristics are documented in the Federal Logistics Information System.