The Valve,ball, cataloged under National Stock Number 4820-01-430-3675, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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 | 4820-01-430-3675 |
| Primary Part Number | 2640-634X1 1-2IN |
| Item Name | Valve,ball |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Electric Boat Corporation Div General Dynamics Electric Boat |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2640-634X1 1-2IN | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 255416 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 255416 L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-634X1 1-2INL1 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 4820-01-430-3675 is a Valve,ball, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-430-3675 has 4 cross-referenced part numbers: 2640-634X1 1-2IN (Electric Boat Corporation Div General Dynamics Electric Boat), 255416 (Huntington Ingalls Inc Div Newport News Shipbuilding), 255416 L1 (Naval Inventory Control Point Mechanicsburg), 2640-634X1 1-2INL1 (Naval Inventory Control Point Mechanicsburg).
There are 3 known substitutes for 4820-01-430-3675: 1660-00-871-0818, 4820-00-933-1515, 5305-01-432-9645. Verify interchangeability with system specifications before substitution.
Key specifications for 2640-634X1 1-2IN: Criticality Code Justification: ZZZY; End Item Identification: VALVE, BALL; Reference Number Differentiating Characteristics: QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. 3 total characteristics are documented in the Federal Logistics Information System.