The Seat,valve, cataloged under National Stock Number 4820-00-943-1479, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Drs Environmental Systems Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-943-1479 |
| Primary Part Number | 45128 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Drs Environmental Systems Inc |
| Status | ACTIVE |
| Body Inside Diameter | 0.188 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Flange Diameter | 0.655 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN |
| Style Designator | PLAIN FLANGED |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Under Flange Height | 0.188 INCHES NOMINAL IN |
| Body Outside Diameter | 0.500 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN |
| Flange Seat to Disk End Height | 0.062 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-943-1479 is a Seat,valve, manufactured by Drs Environmental Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-943-1479 has 2 cross-referenced part numbers: 45128 (Drs Environmental Systems Inc), 45128 (Davey Compressor Co Div of Keco Industries Inc).
There are 5 known substitutes for 4820-00-943-1479: 5950-01-014-2968, 5110-01-377-2274, 5120-01-430-2938 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 45128: Body Inside Diameter: 0.188 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Flange Diameter: 0.655 INCHES MINIMUM AND 0.660 INCHES MAXIMUM IN; Style Designator: PLAIN FLANGED. 9 total characteristics are documented in the Federal Logistics Information System.