The Seat,valve, cataloged under National Stock Number 4820-00-375-7857, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-375-7857 |
| Primary Part Number | 5119-4824-3800PC4-85482 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Style Designator | PLAIN THREADED |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNS SINGLE THREADED PORTION |
| Body Inside Diameter | 1.875 INCHES NOMINAL IN |
| Thread Length | 0.563 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Thread Class | 3A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 18 SINGLE THREADED PORTION |
| Seat Angle in Deg | 45.000 NOMINAL |
| Nominal Thread Size | 2.500 INCHES SINGLE THREADED PORTION IN |
| Seating Surface Shape | ANGULAR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5119-4824-3800PC4-85482 PRIMARY | Naval Ship Systems Command (USA) |
| 85482 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 5119-4824-3805PC85482 PRIMARY | Naval Ship Systems Command (USA) |
| V6092CALT3ITEM1 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| 5119-4824-3803PC4-1-1-2 PRIMARY | Naval Ship Systems Command (USA) |
| R6309LLPC4-1-1-2 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| R6309SPC4-85482 PRIMARY | Ashcroft Inc Dba Heise (USA) |
| R6309TPC85482 PRIMARY | Ashcroft Inc Dba Heise (USA) |
NSN 4820-00-375-7857 is a Seat,valve, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-375-7857 has 8 cross-referenced part numbers: 5119-4824-3800PC4-85482 (Naval Ship Systems Command), 85482 (Ashcroft Inc Dba Heise), 5119-4824-3805PC85482 (Naval Ship Systems Command), V6092CALT3ITEM1 (Ashcroft Inc Dba Heise), 5119-4824-3803PC4-1-1-2 (Naval Ship Systems Command) and 3 more.
There are 4 known substitutes for 4820-00-375-7857: 5998-00-102-6976, 5905-00-117-0239, 4820-00-607-8677 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 5119-4824-3800PC4-85482: Style Designator: PLAIN THREADED; Material: NICKEL ALLOY OVERALL; Thread Series Designator: UNS SINGLE THREADED PORTION; Body Inside Diameter: 1.875 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.