nuts › self-locking slotted hexagon nuts
MS17825-9
Castellated Nut
Description
Castellated Nut
Specifications
| Alternate Part Number | F12NEC-0918 |
|---|---|
| Bearing Surface Type | Washer faced |
| Industry Standards/Certification | MIL-S-8879 |
| Locking Feature | Prevailing torque with nonmetallic insert |
| Material | Plastic |
| Maximum Dimension A | 0.624 in |
| Maximum Dimension B | 0.877 in |
| Minimum Dimension A | 0.594 in |
| Minimum Dimension B | 0.865 in |
| Minimum Dimension C | 0.978 in |
| Minimum Test Wrenching Torque | 1100 in·lb |
| Minimum Ultimate Tensile Strength | 21200 lb |
| NIIN | 00-181-6798 |
| NSN | 5310-00-181-6798 |
| Nut Height | 0.594 inches minimum and 0.624 inches maximum |
| Nut Style | Slotted, hexagon |
| Surface Treatment | Cadmium |
| Surface Treatment Specification | Qq-p-416,ty 2,cl 2 fed spec single treatment response nut |
| Temperature Rating | 250.0 deg fahrenheit |
| Thread Class | 3b |
| Thread Direction | Right-hand |
| Thread MIL-S-8879 | 0.5625-18 |
| Thread Qty | 18 |
| Thread Qty Per Inch (tpi) | 18 |
| Thread Series | UNJF |
| Thread Size | 0.562, 9/16-18 |
| Type | Self-Locking Castellated Nut |
| Weight | 0.05 lb |
| Width Across Flats | 0.865 inches minimum and 0.877 inches maximum |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
No interchangeable or dimensionally similar parts are on record for MS17825-9. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error