MS90708 Ring, Retaining, External Interlocking

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8

MS90708D

(h)  LOAD CAPACITY, WITH THE RETAINED PART RADIUSED OR CHAMFERED:

WHEN THE RADIUS OR CHAMFER OF THE RETAINED PART DOES NOT EXCEED THE MAXIMUM RADIUS ALLOWED FOR THE BOTTOM OF THE RING GROOVE, THE LESSER LOAD CAPACITY COMPUTED FROM THE FORMULAS ON PAGE 4 WILL APPLY. THE CORNER RADII AND CHAMFERS LISTED ON PAGE 2

WERE CHOSEN AS LARGE AS POSSIBLE FOR THE RING SIZES INVOLVED AND ARE RELATED TO THE MAXIMUM THRUST LOADS LISTED IN TABLE VI.

IF THE CORNER RADII OR CHAMFERS ARE SMALLER THAN THOSE LISTED, THEN THE THRUST LOADS INCREASE PROPORTIONALLY IN ACCORDANCE WITH THE FOLLOWING FORMULAS:

1                                                                                                  1

P    =  PCH             OR                                                               P

= NEW ALLOWABLE THRUST LOAD.

CH1                                                                                             P = LISTED ALLOWABLE THRUST LOAD.

1

WHERE:                                              CH

= NEW (SMALLER) CHAMFER.

CH = LISTED CHAMFER.

1                                                                                                  1

P    =  PR                                                                                    R

1

= NEW (SMALLER) CORNER RADIUS.

R                                                                                      R = LISTED CORNER RADIUS.

LIMIT LOADS LISTED BELOW ARE BASED ON RINGS OF STEEL (WORKING STRESS = 250,000 P.S.I.) AND OF BERYLLIUM COPPER (WORKING STRESS = 180,000 P.S.I.).  IF THE ALLOWABLE GROOVE CAPACITY LOADS AS CALCULATED BY USING THE FORMULA GIVEN ABOVE ARE LESS, THEN THEY SHOULD BE USED.

.

TABLE VI. LIMIT LOADS.

5.  CHANGES FROM PREVIOUS ISSUE.  MARGINAL NOTATIONS ARE NOT USED IN THIS REVISION TO IDENTIFY CHANGES WITH RESPECT TO THE PREVIOUS ISSUE DUE TO THE EXTENT OF THE CHANGES.

MILITARY INTEREST

Custodians:                                                                                                               Preparing activity: Army - AR                                                                                                                 DLA - IS

Navy - AS

Air Force - 99                                                                                                         (Project  5325-2012-018)

Review activities:

Army - AT, AV, CR, CR4

Navy - MC, SH, YD Air Force - 71

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the

ASSIST Online database at https://assist.dla.mil.

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