screws › machine screws
MS3213-18
Military Standard Screwseal
Description
Fastener Length: 23/32", Thread: 6-32, Thread Length: 43/64"
Specifications
| Fastener Length | 0.719 inches minimum and 0.750 inches maximum |
|---|---|
| Head Diameter | 0.256 inches minimum and 0.294 inches maximum |
| Head Height | 0.087 inches minimum and 0.097 inches maximum |
| Head Style | Watertight |
| Internal Drive Style | Cross recess type 1 |
| Length | 3/4 |
| Material | Steel |
| Screw Material | Steel comp 304 or steel comp 305 or steel |
| Screw Surface Treatment | Passivate |
| Screw Surface Treatment Specification | Qq-p-35 fed spec single treatment response |
| Special Features | Furnished w/one flourosilicone rubber o-ring per mil-r-25988 |
| Thread Class | 2a |
| Thread Diameter | 0.138 |
| Thread Direction | Right-hand |
| Thread Length | 0.657 inches minimum and 0.750 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNC |
| Thread Size | 6 |
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 MS3213-18. Try the cross-reference lookup to search by a different part number.
Catalog data updated 2026-07-05. Report a data error