The Seat,valve, cataloged under National Stock Number 4820-00-840-8762, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Marotta Controls Inc. Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-840-8762 |
| Primary Part Number | 180422 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Marotta Controls Inc |
| Status | ACTIVE |
| Flange Seat to Disk End Height | 0.089 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN |
| Flange Diameter | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Seating Surface Shape | FLAT |
| Under Flange Height | 0.170 INCHES NOMINAL IN |
| Material | PLASTIC POLYHEXAMETHYLENE ADIPAMIDE OVERALL |
| Body Inside Diameter | 0.060 INCHES NOMINAL IN |
| Material Document and Classification | MIL-M-20693,COMP A,TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Outside Diameter | 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 180422 PRIMARY | Marotta Controls Inc (USA) |
NSN 4820-00-840-8762 is a Seat,valve, manufactured by Marotta Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-840-8762 has 1 cross-referenced part number: 180422 (Marotta Controls Inc).
There are 3 known substitutes for 4820-00-840-8762: 3110-00-112-6329, 4820-01-349-7337, 1240-01-702-8382. Verify interchangeability with system specifications before substitution.
Key specifications for 180422: Flange Seat to Disk End Height: 0.089 INCHES MINIMUM AND 0.091 INCHES MAXIMUM IN; Flange Diameter: 0.436 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN; Seating Surface Shape: FLAT; Under Flange Height: 0.170 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.