The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-888-3305, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is General Regulator Corp. Dba Accudriv. Government technical data includes 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-888-3305 |
| Primary Part Number | 81640 |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | General Regulator Corp. Dba Accudriv |
| Status | CANCELLED |
| Material Thickness | 0.007 INCHES NOMINAL IN |
| Style Designator | FLAT |
| Bolt Hole Quantity | 12 |
| Material | RUBBER |
| Outside Diameter | 2.250 INCHES NOMINAL IN |
| Bolt Circle Diameter | 1.812 INCHES NOMINAL IN |
| Hole Diameter | 0.188 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-888-3305 is a Diaphragm,valve,flat, manufactured by General Regulator Corp. Dba Accudriv, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-888-3305 has 3 cross-referenced part numbers: 81640 (General Regulator Corp. Dba Accudriv), 1879-9 (General Regulator Corp. Dba Accudriv), 81640-01 (General Regulator Corp. Dba Accudriv).
There are 4 known substitutes for 4820-00-888-3305: 5962-01-024-9329, 2530-01-223-2862, 6240-01-507-7639 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 81640: Material Thickness: 0.007 INCHES NOMINAL IN; Style Designator: FLAT; Bolt Hole Quantity: 12; Material: RUBBER. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-888-3305 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.