Item # SFB101-9SN14A, Stud - Ring Locked - SFA( ) & SFB( ) Series On Howmet Aerospace

Unit of Measure

Specifications | Notes

Series	N/A SFB( )
Material	N/A 4340 Steel
Material Specification	N/A MIL-S-5000
Heat Treat	N/A 160-180 KSI UTS
Finish	N/A Cadmium plate per QQ-P-416, Type II, Class 3
AND Standard	N/A 20000
Lockring Part Number	N/A RLRR24SA7
Lockring Military Part Number	N/A MS51990-105P
Nut End Type	N/A Undrilled
A Nut End Thread Size	N/A 0.2500-28 UNF-3A
B Stud End Thread Size	N/A 0.3125-18
B Stud End Thread-Pitch Diameter	N/A 0.2778-0.2795 in
B Stud End Thread-Minor Diameter	N/A 0.2373-0.2474 in
C	N/A 0.875-0.905 in
D min full THD	N/A 0.688 in
E ±.015	N/A 0.390 in
F ±.015	N/A 0.560 in
L ±.015	N/A 0.875 in
TYPE_SET	N/A 1

N/A

<4>Nut end lengths "C" are designed to meet AND standards after stud serrated collar is installed .010-.020 below the surface of the parent material.
The stud end thread has a special pitch diameter and minor diameter which installs into a MIL-S-8879 class 3B, FED-STD-H28/2 class 3B, or National class 3 tapped hole.
Studs are installed in accordance with MS51995.
SFA and SFB studs are only furnished to dimensions shown. Coding of modifications is not permissible.
<8>2 max incomplete threads.
Mating lockring is not included with stud. It must be ordered separately.

Series