The Seat,valve, cataloged under National Stock Number 4820-01-061-7138, 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 10 commercial cross-references from 3 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 | 4820-01-061-7138 |
| Primary Part Number | 2640-801X01 PIECE 22 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Seat Angle in Deg | 45.000 NOMINAL |
| Material | PLASTIC ACETAL OVERALL |
| Seating Surface Shape | ANGULAR |
| Material Document and Classification | DE568 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Style Designator | PLAIN |
| Body Inside Diameter | 3.062 INCHES NOMINAL IN |
| Body Outside Diameter | 4.484 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2643-820-88 ITEM 11 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2640-801X01 PIECE 22 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 56-97-0727 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 264080101-0022 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2640-801X1 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-4558779ITEM | Naval Ship Systems Command (USA) |
| 845-7284929 ITEM 11 | Naval Sea Systems Command (USA) |
| 845-4558779 ITEM 10 | Naval Sea Systems Command (USA) |
| 2642-822-10 ITEM 10 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2640-801X1 PC 2 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4820-01-061-7138 is a Seat,valve, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-061-7138 has 10 cross-referenced part numbers: 2643-820-88 ITEM 11 (Electric Boat Corporation Div General Dynamics Electric Boat), 2640-801X01 PIECE 22 (Electric Boat Corporation Div General Dynamics Electric Boat), 56-97-0727 (Electric Boat Corporation Div General Dynamics Electric Boat), 264080101-0022 (Electric Boat Corporation Div General Dynamics Electric Boat), 2640-801X1 (Electric Boat Corporation Div General Dynamics Electric Boat) and 5 more.
There are 4 known substitutes for 4820-01-061-7138: 4820-00-411-2695, 4820-01-058-1984, 4820-01-488-5542 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-801X01 PIECE 22: Seat Angle in Deg: 45.000 NOMINAL; Material: PLASTIC ACETAL OVERALL; Seating Surface Shape: ANGULAR; Material Document and Classification: DE568 MFR REF SINGLE MATERIAL RESPONSE OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.