The Disk,valve, cataloged under National Stock Number 4820-00-600-8673, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-600-8673 |
| Primary Part Number | A4578 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | CANCELLED |
| Inside Diameter | 0.205 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-7720, COMP 303 MIL SPEC SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 303 |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Flange Diameter | 0.408 INCHES NOMINAL IN |
| Inside Depth | 0.405 INCHES NOMINAL IN |
| Under Flange Height | 0.665 INCHES NOMINAL IN |
| Shank Diameter | 0.278 INCHES NOMINAL IN |
| Style Designator | POPPET |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-600-8673 is a Disk,valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-600-8673 has 2 cross-referenced part numbers: A4578 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 235895 (Joy Global Underground Mining Llc).
There are 2 known substitutes for 4820-00-600-8673: 3040-00-574-7485, 5330-01-027-6451. Verify interchangeability with system specifications before substitution.
Key specifications for A4578: Inside Diameter: 0.205 INCHES NOMINAL IN; Material Document and Classification: MIL-S-7720, COMP 303 MIL SPEC SINGLE MATERIAL RESPONSE; Material: STEEL COMP 303; Seat Angle: 45.0 DEGREES NOMINAL. 10 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-600-8673 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.