The Cap,pneumatic Valve, cataloged under National Stock Number 2640-00-618-9644, is classified within Federal Supply Class 2640 (No Item Name Available) of the Tires and Tubes group. The primary manufacturer of record is Scovill Inc Schrader Bellows Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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 | 2640-00-618-9644 |
| Primary Part Number | 4923 |
| Item Name | Cap,pneumatic Valve |
| FSC / FSG | 2640 / 26 — No Item Name Available |
| Manufacturer | Scovill Inc Schrader Bellows Div |
| Status | CANCELLED |
| Thread Direction | RIGHT-HAND INTERNAL |
| Thread Series Designator | UNS INTERNAL |
| Nominal Thread Size | 0.206 INCHES INTERNAL IN |
| Thread Pitch Diameters | +0.1790 TO 0.1820 INCHES INTERNAL IN |
| Connection Style | PLAIN |
| Thread Quantity Per Inch | 36 INTERNAL |
| Style Designator | CAP, VALVE SEALING |
| Material | COPPER ALLOY OVERALL |
| Thread Class | 2A INTERNAL A |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 2640-00-618-9644 is a Cap,pneumatic Valve, manufactured by Scovill Inc Schrader Bellows Div, classified under FSC 2640 (No Item Name Available). Status: cancelled.
NSN 2640-00-618-9644 has 3 cross-referenced part numbers: 4923 (Scovill Inc Schrader Bellows Div), 653B (Eaton Corporation Dba Air Controls Division Div Air Controls Division), 910983-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
There are 4 known substitutes for 2640-00-618-9644: 2805-00-176-4062, 5305-00-292-4986, 7025-01-048-2804 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4923: Thread Direction: RIGHT-HAND INTERNAL; Thread Series Designator: UNS INTERNAL; Nominal Thread Size: 0.206 INCHES INTERNAL IN; Thread Pitch Diameters: +0.1790 TO 0.1820 INCHES INTERNAL IN. 10 total characteristics are documented in the Federal Logistics Information System.
NSN 2640-00-618-9644 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.