The Disk,valve, cataloged under National Stock Number 4820-01-084-1803, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Flowserve Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-084-1803 |
| Primary Part Number | 16738 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Outside Diameter | 2.153 INCHES NOMINAL IN |
| Thread Series Designator | UN |
| Nominal Thread Size | 1.438 INCHES IN |
| Style Designator | PLUG |
| Seat Angle | 70.0 DEGREES NOMINAL |
| Material | STEEL |
| Thread Quantity Per Inch | 16 |
| Thread Class | 2B |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-01-084-1803 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-084-1803 has 3 cross-referenced part numbers: B-32978 (Flowserve Inc), F-31626 (Flowserve Inc), 16738 (Flowserve Inc).
There are 2 known substitutes for 4820-01-084-1803: 4820-01-084-0486, 5120-01-622-1891. Verify interchangeability with system specifications before substitution.
Key specifications for 16738: Outside Diameter: 2.153 INCHES NOMINAL IN; Overall Height: 1.255 INCHES NOMINAL IN; Thread Series Designator: UN; Nominal Thread Size: 1.438 INCHES IN. 9 total characteristics are documented in the Federal Logistics Information System.