The Seat,valve, cataloged under National Stock Number 4820-00-007-2193, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-007-2193 |
| Primary Part Number | 187321 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Marotta Controls Inc |
| Status | ACTIVE |
| Material | STEEL BODY |
| Flange Diameter | 0.749 INCHES NOMINAL IN |
| Under Flange Height | 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN |
| Seating Surface Shape | FLAT |
| Body Inside Diameter | 0.160 INCHES MINIMUM AND 0.162 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.633 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Material | PLASTIC POLYAMIDE NYLON FACE |
| Flange Seat to Disk End Height | 0.093 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-007-2193 is a Seat,valve, manufactured by Marotta Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-007-2193 has 2 cross-referenced part numbers: 183211 (Marotta Controls Inc), 187321 (Marotta Controls Inc).
There are 2 known substitutes for 4820-00-007-2193: 4730-00-424-5871, 5305-01-101-9427. Verify interchangeability with system specifications before substitution.
Key specifications for 187321: Material: STEEL BODY; Flange Diameter: 0.749 INCHES NOMINAL IN; Under Flange Height: 0.185 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN; Seating Surface Shape: FLAT. 9 total characteristics are documented in the Federal Logistics Information System.