The Seat,valve, cataloged under National Stock Number 4820-00-375-7795, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-375-7795 |
| Primary Part Number | 575-4900-1444297REVAPC21 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Under Flange Height | 0.313 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Seating Surface Shape | ANGULAR |
| Style Designator | THREADED FLANGED |
| Taper Length | 0.438 INCHES NOMINAL IN |
| Taper Minor Diameter | 0.487 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.094 INCHES NOMINAL IN |
| Seat Angle in Deg | 22.000 NOMINAL |
| Taper Major Diameter | 0.875 INCHES NOMINAL IN |
| Body Inside Diameter | 0.245 INCHES NOMINAL IN |
| Flange Diameter | 0.875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 575-4900-1444297REVAPC21 PRIMARY | Naval Sea Systems Command (USA) |
| N694PC21 | Grove Valve Operations (USA) |
| 575-4900-1444297REVAPC21 | Naval Ship Systems Command (USA) |
| 23159-1 PRIMARY | Grove Valve Operations (USA) |
| 23159 | Grove Valve Operations (USA) |
| 23159PCALL | Grove Valve Operations (USA) |
| Z055GPC23159 | Grove Valve Operations (USA) |
NSN 4820-00-375-7795 is a Seat,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-375-7795 has 7 cross-referenced part numbers: 575-4900-1444297REVAPC21 (Naval Sea Systems Command), N694PC21 (Grove Valve Operations), 575-4900-1444297REVAPC21 (Naval Ship Systems Command), 23159-1 (Grove Valve Operations), 23159 (Grove Valve Operations) and 2 more.
There are 9 known substitutes for 4820-00-375-7795: 5940-00-935-8350, 5930-01-047-6403, 5950-01-107-0353 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for 575-4900-1444297REVAPC21: Under Flange Height: 0.313 INCHES NOMINAL IN; Material: STEEL OVERALL; Seating Surface Shape: ANGULAR; Style Designator: THREADED FLANGED. 11 total characteristics are documented in the Federal Logistics Information System.