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NAS221-13
Screw
Description
Fastener Length: 7/8", Thread: 10-32, Thread Length: 33/64
Specifications
| Fastener Length | 0.829 inches minimum and 0.876 inches maximum |
|---|---|
| Hardness Rating | 26.0 rockwell c minimum and 32.0 rockwell c maximum |
| Head Diameter | 0.361 inches minimum and 0.385 inches maximum |
| Head Height | 0.103 inches minimum and 0.118 inches maximum |
| Head Style | Round Head |
| Internal Drive Style | Cross recess type 1 |
| Length | 7/8 |
| Material | Steel |
| Min. Tensile Strength (psi) | 125000 pounds per square inch |
| Screw Material | Steel comp 8630 |
| Screw Material Specification | Mil-s-6050 mil spec single material response or an-s-9 mil std single material response |
| Screw Surface Treatment | Cadmium |
| Screw Surface Treatment Specification | Qq-p-416,ty 1,cl 3 fed spec single treatment response |
| Thread Class | 3a |
| Thread Diameter | 0.190 |
| Thread Direction | Right-hand |
| Thread Length | 0.377 inches minimum and 0.516 inches maximum |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series Designator | UNF |
| Thread Size | 10 |
Other sizes
Parts that share this base number, ordered by size. Always verify the full specification before substituting.
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for NAS221-13 — functionally equivalent.
- MS27039-1-13 Listed alternate #10-32 · 27/32 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error