FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 7. Aircraft Hardware, Control Cables, and Turnbuckles | 11. Hardware Identification Tables | 7-208. Screws
9/8/98
TABLE 7-11. (CONTINUED)
Screw MS, AN, or
Description
NAS Number
MS21262
Screw, self-lock,
int. wrenching
AC 43.13-1B
TABLE 7-11. (CONTINUED)
Screw MS, AN, or
Description
NAS Number
MS24673-24678
Screw, cap socket hd.,
flat, drilled
MS21277-21285
MS21286-21294
MS21295
Screw, machine, dou-
ble hex., ext. washer
head
Screw, machine, dou-
ble hex., ext. washer
head
Screw, self-lock,
int. wrenching
MS24693
MS24694
MS27039
MS21318
MS21342
MS24615-24618
MS24619-24622
MS24623-24626
MS24627-24630
MS24667 & 24671
Screw, drive,
round head,
Type U
Setscrew,
fluted socket,
cup and flat point
Screw, tapping, phillips
recessed, pan & 82°
flathead Type A
Screw, tapping, phillips
recessed, pan & 82°
flathead Type B
Screw, tapping, cross
recessed pan & 82°
flathead, Type BF or
BT
Screw, tapping, thread
cutting cross recessed
pan & 82° flathead,
Type F
Screw, cap socket hd.,
flat, csk.
MS35190-35203
MS35206-35219
MS35223-35234
MS35239-35243
MS35265-35278
MS35492-35493
MS35494-35495
Screw, machine,
flat csk. head, 100°
cross recess
Screw, machine,
csk. flathead., 100°
cross recess, structural
Screw, machine,
panhead, structural,
cross recessed
Screw, machine 82°
flathead., cross re-
cessed, steel, brass,
alum.
Screw, machine, pan-
head, cross recessed,
steel, brass, alum.
Screw, machine, pan-
head, slotted, SS steel,
steel
Screw, machine, flat-
head., slotted, steel
Screw, machine, drilled
fillister head, slotted,
SS steel, brass, alum.
Screw, wood, flathead,
cross recessed
Screw. wood, flat &
round hd., slotted
Par 7-196
Page 7-53