The Seat,valve, cataloged under National Stock Number 4820-00-035-9920, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 4820-00-035-9920 |
| Primary Part Number | C769 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Griswold Industries Dba Cla-Val Co |
| Status | ACTIVE |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Thread Length | 0.320 INCHES MAXIMUM SECOND THREADED PORTION IN |
| Nominal Thread Size | 2.375 INCHES SINGLE THREADED PORTION IN |
| Flange Diameter | 2.630 INCHES NOMINAL IN |
| Material | NICKEL OR COPPER ALLOY OVERALL |
| Under Flange Height | 0.410 INCHES NOMINAL IN |
| Body Inside Diameter | 2.000 INCHES MINIMUM AND 2.003 INCHES MAXIMUM IN |
| Seating Surface Shape | ANGULAR |
| Thread Length | 0.280 INCHES MINIMUM FIRST THREADED PORTION IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Seat Angle in Deg | 0.083 NOMINAL |
| Flange Seat to Disk End Height | 0.219 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| C769 PRIMARY | Griswold Industries Dba Cla-Val Co (USA) |
NSN 4820-00-035-9920 is a Seat,valve, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-035-9920 has 1 cross-referenced part number: C769 (Griswold Industries Dba Cla-Val Co).
There are 4 known substitutes for 4820-00-035-9920: 3820-00-429-7672, 2940-01-173-7733, 6105-01-370-2566 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for C769: Thread Quantity Per Inch: 16 SINGLE THREADED PORTION; Style Designator: THREADED FLANGED; Thread Series Designator: UN SINGLE THREADED PORTION; Thread Length: 0.320 INCHES MAXIMUM SECOND THREADED PORTION IN. 14 total characteristics are documented in the Federal Logistics Information System.