The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-547-0646, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 8 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 | 4820-00-547-0646 |
| Primary Part Number | 83139G |
| Item Name | Diaphragm,valve,flat |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Griswold Industries Dba Cla-Val Co |
| Status | ACTIVE |
| Style Designator | FLAT |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 5.062 INCHES NOMINAL IN |
| Outside Diameter | 5.875 INCHES NOMINAL IN |
| Hole Diameter | 0.375 INCHES NOMINAL IN |
| Center Hole Diameter | 0.375 INCHES NOMINAL IN |
| Material | RUBBER FABRIC REINFORCED |
| Material Thickness | 0.048 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4820-00-547-0646 is a Diaphragm,valve,flat, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-547-0646 has 4 cross-referenced part numbers: 831399 (Griswold Industries Dba Cla-Val Co), 85584PC11 (Griswold Industries Dba Cla-Val Co), 83139G (Griswold Industries Dba Cla-Val Co), 83139 (Griswold Industries Dba Cla-Val Co).
There are 3 known substitutes for 4820-00-547-0646: 5330-00-154-8382, 5930-00-419-3232, 7510-01-383-7990. Verify interchangeability with system specifications before substitution.
Key specifications for 83139G: Style Designator: FLAT; Bolt Hole Quantity: 8; Bolt Circle Diameter: 5.062 INCHES NOMINAL IN; Outside Diameter: 5.875 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.