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Unit of Measure

Series

N/A SF(T)5902

Material

N/A TI-6AL-4V Titanium per AMS4967 or MIL-T-9047

Heat Treat

N/A 35 HRC ( 160 KSI min)

Finish

N/A None

Military Part Number

N/A MS51992C503-40

Lockring - Low Strength Magnesium

N/A RL1997-103

Lockring - Aluminum

N/A RLRR1997-103

Lockring Part Number

N/A RLRR1997E103

Lockring Military Part Number

N/A MS51997E103P

Nut End Type

N/A Drilled

A Nut End Thread Size

N/A 0.2500-28 UNJF-3A

Stud End type

N/A Recess

B Stud End Thread Size

N/A 0.3750-24

B Stud End Thread-Pitch Diameter

N/A 0.3512-0.3497 in

B Stud End Thread-Minor Diameter

N/A 0.3271-0.3185 in

C ±.020

N/A 0.486 in

D - Dia

N/A 0.249-0.246 in

E - Dia +.005 -.004

N/A 0.255 in

F - Dia +.007 -.002

N/A 0.284 in

G - Dia +.000 -.015

N/A 0.318 in

H - Dia Min

N/A 0.233 in

J

N/A 17.000

K +2 -1

N/A 86.000 º

M

N/A 0.281 in

N -Dia

N/A 0.202 in

T ±.015

N/A 0.594 in

V ±.016

N/A 0.142 Inch

P - Dia ±.010

N/A 0.190 in

S ±.015

N/A 0.160 in

U

N/A 0.067 in

L ±.015

N/A 2.500 in

Grip Length

N/A 1.906 in

Shank Length

N/A 0.125 in

Step Drill Part Number

N/A SDC390JC

Drive Wrench Number

N/A R1105W

Lockring Drive Tool Part Number

N/A SF5902-3D

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.