The Disk,valve, cataloged under National Stock Number 4820-01-147-8571, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-147-8571 |
| Primary Part Number | 16976 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Outside Diameter | 1.750 INCHES NOMINAL IN |
| Thread Series Designator | UN |
| Thread Quantity Per Inch | 16 |
| Style Designator | PLUG |
| Seat Angle | 70.0 DEGREES NOMINAL |
| Material | STEEL CORROSION RESISTING |
| Nominal Thread Size | 1.438 INCHES IN |
| Thread Class | 2B |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 16976 PRIMARY | Flowserve Inc (USA) |
NSN 4820-01-147-8571 is a Disk,valve, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-147-8571 has 1 cross-referenced part number: 16976 (Flowserve Inc).
There are 5 known substitutes for 4820-01-147-8571: 6220-00-052-0700, 2815-00-371-6766, 6130-00-635-6136 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 16976: Outside Diameter: 1.750 INCHES NOMINAL IN; Thread Series Designator: UN; Overall Height: 3.000 INCHES NOMINAL IN; Thread Quantity Per Inch: 16. 9 total characteristics are documented in the Federal Logistics Information System.