The Seat,valve, cataloged under National Stock Number 4820-00-393-4283, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Grove Valve Operations. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-393-4283 |
| Primary Part Number | 154-00401 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Grove Valve Operations |
| Status | ACTIVE |
| Seat Angle in Deg | 45.000 NOMINAL |
| Body Outside Diameter | 1.250 INCHES NOMINAL IN |
| Seating Surface Shape | ANGULAR |
| Material | STEEL OVERALL |
| Under Flange Height | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 0.500 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.500 INCHES NOMINAL IN |
| Style Designator | PLAIN FLANGED |
| Flange Diameter | 1.625 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-393-4283 is a Seat,valve, manufactured by Grove Valve Operations, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-393-4283 has 2 cross-referenced part numbers: 234113 (Grove Valve Operations), 154-00401 (Grove Valve Operations).
There are 5 known substitutes for 4820-00-393-4283: 4710-00-031-6420, 5360-00-597-3741, 6850-00-779-4699 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 154-00401: Seat Angle in Deg: 45.000 NOMINAL; Body Outside Diameter: 1.250 INCHES NOMINAL IN; Seating Surface Shape: ANGULAR; Material: STEEL OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.