The Seat,valve, cataloged under National Stock Number 4820-01-100-2146, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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 | 4820-01-100-2146 |
| Primary Part Number | 51158-B-380 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| Under Flange Height | 0.286 INCHES NOMINAL IN |
| Material | NICKEL ALLOY OVERALL |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Nominal Thread Size | 0.625 INCHES SINGLE THREADED PORTION IN |
| Flange Diameter | 0.750 INCHES NOMINAL IN |
| Seating Surface Shape | ANGULAR |
| Flange Seat to Disk End Height | 0.091 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.000 NOMINAL |
| Thread Length | 0.205 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Body Inside Diameter | 0.375 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 584-1 594-1 | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 51158-B-380 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 51158B | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 51158B 3-8IN | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
NSN 4820-01-100-2146 is a Seat,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-100-2146 has 4 cross-referenced part numbers: 584-1 594-1 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 51158-B-380 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 51158B (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 51158B 3-8IN (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc).
There are 4 known substitutes for 4820-01-100-2146: 4820-01-041-1219, 4820-01-058-3675, 4820-01-067-6334 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 51158-B-380: Under Flange Height: 0.286 INCHES NOMINAL IN; Material: NICKEL ALLOY OVERALL; Thread Series Designator: UNEF SINGLE THREADED PORTION; Style Designator: THREADED FLANGED. 12 total characteristics are documented in the Federal Logistics Information System.