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Unit of Measure

Series

N/A SF(T)5902

Material

N/A 8740 Alloy Steel per AMS6322

Heat Treat

N/A 39 HRC ( 180 KSI min)

Finish

N/A Cadmium Plate per AMS2401

Military Part Number

N/A MS51992C502-13

Lockring - Low Strength Magnesium

N/A RL1997-102

Lockring - Aluminum

N/A RLRR1997-102

Lockring Part Number

N/A RLRR1997E102

Lockring Military Part Number

N/A MS51997E102P

Nut End Type

N/A Undrilled

A Nut End Thread Size

N/A 0.1900-32 UNJF-3A

Stud End type

N/A Recess

B Stud End Thread Size

N/A 0.3125-24

B Stud End Thread-Pitch Diameter

N/A 0.2884-0.2869 in

B Stud End Thread-Minor Diameter

N/A 0.2643-0.2559 in

C ±.020

N/A 0.386 in

D - Dia

N/A 0.189-0.186 in

E - Dia +.005 -.004

N/A 0.203 in

F - Dia +.007 -.002

N/A 0.230 in

G - Dia +.000 -.015

N/A 0.255 in

H - Dia Min

N/A 0.175 in

J

N/A 13.000

K +2 -1

N/A 102.000 º

M

N/A 0.205 in

N -Dia

N/A 0.174 in

T ±.015

N/A 0.469 in

V ±.016

N/A 0.128 Inch

P - Dia ±.010

N/A 0.137 in

L ±.015

N/A 0.812 in

Grip Length

N/A 0.343 in

Shank Length

N/A 0.095 in

Step Drill Part Number

N/A SDC328JC

Drive Wrench Number

N/A R1104W

Lockring Drive Tool Part Number

N/A SF5902-2D

Notes

N/A
  • Surface Roughness: ANSIB 46.1 except serrated collar. Machined surfaces to be 125 microinch Ra per
  • Threads: The stud end thread has a special pitch diameter and minor diameter which installs into A AS8879, class 3B tapped hole.
  • Concentricity: Shank of nut end shall be concentric with serrated collar within 0.006 FIR.
  • Fillets: R .030 Maximum
  • Edges: Edges broken .003-.015 umless otherwise specified
  • "T"dimension will terminate within3 pitches of serrated collar.