The Seat,valve, cataloged under National Stock Number 4820-01-119-0584, 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 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-119-0584 |
| Primary Part Number | 13999 03011 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Flowserve Inc |
| Status | ACTIVE |
| Flange Diameter | 1.253 INCHES NOMINAL IN |
| Seating Surface Shape | FLAT |
| Thread Quantity Per Inch | 16 SINGLE THREADED PORTION |
| Thread Series Designator | UN SINGLE THREADED PORTION |
| Style Designator | THREADED FLANGED |
| Material | STEEL OVERALL |
| Nominal Thread Size | 1.000 INCHES SINGLE THREADED PORTION IN |
| Under Flange Height | 0.382 INCHES NOMINAL IN |
| Body Inside Diameter | 0.690 INCHES NOMINAL IN |
| Flange Seat to Disk End Height | 0.182 INCHES NOMINAL IN |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Thread Length | 0.250 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 13999 03011 PRIMARY | Flowserve Inc (USA) |
| 13999 | Flowserve Inc (USA) |
| B-51063 ITEM 13999 | Flowserve Inc (USA) |
| B-51063 | Flowserve Inc (USA) |
NSN 4820-01-119-0584 is a Seat,valve, manufactured by Flowserve Inc, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-119-0584 has 4 cross-referenced part numbers: 13999 03011 (Flowserve Inc), 13999 (Flowserve Inc), B-51063 ITEM 13999 (Flowserve Inc), B-51063 (Flowserve Inc).
There are 3 known substitutes for 4820-01-119-0584: 4820-01-118-1225, 4820-01-118-4029, 7025-01-457-6839. Verify interchangeability with system specifications before substitution.
Key specifications for 13999 03011: Flange Diameter: 1.253 INCHES NOMINAL IN; Seating Surface Shape: FLAT; Thread Quantity Per Inch: 16 SINGLE THREADED PORTION; Thread Series Designator: UN SINGLE THREADED PORTION. 12 total characteristics are documented in the Federal Logistics Information System.