Military Standard - Machine Screw - MS24693BB272
Standard Part
Description: Machine Screw
Part Number: MS24693BB272
Alternate Part Numbers: MS24693-BB272
Product Overview
An externally threaded fastener whose threaded portion is of one diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type of inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
Item Specification
| Thread Class | 2A | |
| Thread Direction | Right-hand | |
| Thread Length | 0.438 inches minimum and 0.500 inches maximum | |
| Fastener Length | 0.500 inches nominal | |
| Head Style | Flat countersunk | |
| Head Diameter | 0.333 inches minimum and 0.385 inches maximum | |
| Internal Drive Style | Cross recess type 1 | |
| End Item Identification | W/s: aircraft, B-1B; aircraft, delta dart F-106; aircraft, orion P-3; aircraft, hercules C-130; helicopter, utility/search and recovery UH-1N; aircraft, stratolifter C-135; FMS-A7 aircraft; aircraft, C-18A, EC-18B; aircraft, starlifter C-141; F117A aircraft | |
| Nominal Thread Diameter | 0.190 inches | |
| Thread Quantity per Inch | 32 | |
| Minimum Tensile Strength | 55000 pounds per square inch | |
| Countersink Angle | 99.0 degrees minimum and 101.0 degrees maximum | |
| Screw Material | Copper alloy | |
| Screw Material Document and Classification | QQ-B-626 fed spec single material response or QQ-W-321 fed spec single material response | |
| Thread Series Designator | UNF |
Fits in
- Textron Aviation Beechcraft King Air 200 - all variants
- Textron Aviation Beechcraft King Air 300 - all variants