The Seat,valve, cataloged under National Stock Number 4820-00-622-1637, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Valcor Engineering Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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 | 4820-00-622-1637 |
| Primary Part Number | 31545 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Valcor Engineering Corporation |
| Status | ACTIVE |
| Seating Surface Shape | FLAT |
| Body Outside Diameter | 0.446 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Body Inside Diameter | 0.188 INCHES NOMINAL IN |
| Material | PLASTIC POLYAMIDE NYLON OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-622-1637 is a Seat,valve, manufactured by Valcor Engineering Corporation, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-622-1637 has 3 cross-referenced part numbers: 31545 (Valcor Engineering Corporation), 31545 (Kidde-Fenwal, Llc), 8528181 (Us Army Aviation and Missile Command).
There are 2 known substitutes for 4820-00-622-1637: 2810-00-118-6022, 9540-00-409-5866. Verify interchangeability with system specifications before substitution.
Key specifications for 31545: Seating Surface Shape: FLAT; Body Outside Diameter: 0.446 INCHES NOMINAL IN; Style Designator: PLAIN; Body Inside Diameter: 0.188 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.