The Seat,valve, cataloged under National Stock Number 4820-00-971-4526, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Crest Good Manufacturing Co Inc. Government technical data includes 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-971-4526 |
| Primary Part Number | 250C059 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Crest Good Manufacturing Co Inc |
| Status | CANCELLED |
| Under Flange Height | 0.125 INCHES NOMINAL IN |
| Body Inside Diameter | 0.312 INCHES NOMINAL IN |
| Seating Surface Shape | RADIAL |
| Flange Seat to Disk End Height | 0.125 INCHES NOMINAL IN |
| Flange Diameter | 0.750 INCHES NOMINAL IN |
| Body Outside Diameter | 0.625 INCHES NOMINAL IN |
| Material | STEEL BODY |
| Style Designator | PLAIN FLANGED |
| Seat Radius | 0.062 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 4820-00-971-4526 is a Seat,valve, manufactured by Crest Good Manufacturing Co Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-971-4526 has 4 cross-referenced part numbers: 250C059 (Crest Good Manufacturing Co Inc), 7400 (Interline Brands, Inc. Dba J. a. Sexauer), 23004 (Interline Brands, Inc. Dba J. a. Sexauer), 23004 (Essex Industries, Inc. Dba Essex Industries).
There are 12 known substitutes for 4820-00-971-4526: 5305-00-054-5639, 5945-00-257-6929, 5330-00-274-8473 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 250C059: Under Flange Height: 0.125 INCHES NOMINAL IN; Body Inside Diameter: 0.312 INCHES NOMINAL IN; Seating Surface Shape: RADIAL; Flange Seat to Disk End Height: 0.125 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-971-4526 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.