The Stem,fluid Valve, cataloged under National Stock Number 4820-01-197-4963, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Velan Valve Corp.. Government technical data includes 6 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-197-4963 |
| Primary Part Number | 2563-050-063 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Material Document and Classification | ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Type for Which Designed | GATE |
| Largest Outside Diameter | 0.562 INCHES NOMINAL IN |
| Valve Size for Which Designed | 1.000 INCHES IN |
| Material | STEEL COMP 416 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2564-50-64 | Velan Valve Corp. (USA) |
| 23062 | Velan Valve Corp. (USA) |
| 23062 ITEM 6 1IN | Velan Valve Corp. (USA) |
| 2563-050-063 PRIMARY | Velan Valve Corp. (USA) |
NSN 4820-01-197-4963 is a Stem,fluid Valve, manufactured by Velan Valve Corp., classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-197-4963 has 4 cross-referenced part numbers: 2564-50-64 (Velan Valve Corp.), 23062 (Velan Valve Corp.), 23062 ITEM 6 1IN (Velan Valve Corp.), 2563-050-063 (Velan Valve Corp.).
There are 12 known substitutes for 4820-01-197-4963: 5305-00-054-6666, 5340-00-076-0396, 2520-00-236-9109 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2563-050-063: Material Document and Classification: ASTM A276 ASSN STD SINGLE MATERIAL RESPONSE; Stem Actuating End Type: THREADED EXTERNALLY; Valve Type for Which Designed: GATE; Overall Length: 6.625 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.