The Seat,valve, cataloged under National Stock Number 4820-01-105-3572, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-105-3572 |
| Primary Part Number | 51163-F-380 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | CANCELLED |
| Thread Length | 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Thread Quantity Per Inch | 20 SINGLE THREADED PORTION |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Material | NICKEL ALLOY OVERALL |
| Style Designator | THREADED FLANGED |
| Seating Surface Shape | ANGULAR |
| Body Inside Diameter | 1.000 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.175 INCHES NOMINAL IN |
| Nominal Thread Size | 1.375 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.375 INCHES NOMINAL IN |
| Flange Diameter | 1.558 INCHES NOMINAL IN |
| Seat Angle in Deg | 30.000 NOMINAL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2620-902 PC4 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 51163-F-380 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| SS845-18895 1IN PIECE 4 | Naval Ship Systems Command (USA) |
| 2620-902ASSYBV1IN PIECE25 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2620-902 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-1889587ASSYBV1IN PIECE25 | Naval Ship Systems Command (USA) |
| 845-1889587 | Naval Ship Systems Command (USA) |
| SS845-1889587 | Naval Ship Systems Command (USA) |
NSN 4820-01-105-3572 is a Seat,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-105-3572 has 8 cross-referenced part numbers: 2620-902 PC4 (Electric Boat Corporation Div General Dynamics Electric Boat), 51163-F-380 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), SS845-18895 1IN PIECE 4 (Naval Ship Systems Command), 2620-902ASSYBV1IN PIECE25 (Electric Boat Corporation Div General Dynamics Electric Boat), 2620-902 (Electric Boat Corporation Div General Dynamics Electric Boat) and 3 more.
There are 12 known substitutes for 4820-01-105-3572: 4820-00-871-8935, 4820-01-043-3626, 4820-01-067-3653 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 51163-F-380: Thread Length: 0.375 INCHES NOMINAL SINGLE THREADED PORTION IN; Thread Class: 2A SINGLE THREADED PORTION A; Thread Quantity Per Inch: 20 SINGLE THREADED PORTION; Thread Series Designator: UN SINGLE THREADED PORTION. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-105-3572 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.