scope:

This Specification is approved for use by all Departments and Agencies of the Department of Defense.

The requirements for acquiring the product described herein shall consist of this specification sheet and the issue of the following specification listed in that issue of the Department of Index of Specifications and Standards (DODISS) specified in the solicitation: MIL-B-3990 [H circled] TABLE III - Tolerance Limits

Ød Allowable Allowable Allowable Allowable Basic Bore Deviation Deviation Deviation Deviation From d of From overall From From Lubrication Single Mean Width Washer outside dia Groove Width Dia., d_mp B dl B1 ------------------------------------------------------------------------------------------------------------------- Over Incl High Low High Low High Low High Low 0.1250 3.0000 +0 −0.0007 +0 −0.0005 +0.010 −0.010 +0 −0.062 3.0000 4.0000 +0 −0.0008 +0 −0.0005 +0.010 −0.010 +0 −0.062 4.0000 5.0000 +0 −0.0010 +0 −0.0005 +0.010 −0.010 +0 −0.062

[H circled] TABLE IV

Ød Allowable Allowable Allowable Allowable Basic Bore Deviation Deviation Deviation Deviation From d of From overall From From Lubrication Single Mean Width Washer outside dia Groove Width Dia., d_mp B dl B1 ------------------------------------------------------------------------------------------------------------------- Over Incl High Low High Low High Low High Low 3.18 76.20 +0 −0.0007 +0 −0.0005 +0.010 −0.010 +0 −1.60 76.20 101.60 +0 −0.0008 +0 −0.0005 +0.010 −0.010 +0 −1.60 101.60 127.0 +0 −0.0010 +0 −0.0005 +0.010 −0.010 +0 −0.60

TABLE II. - Oil Hole Data

Bore-Dash No. Number of Holes -------------------------------------------------- Over Incl Inner Outer Ring Ring ----------------------------------------------- 2 5 None 2 5 10 2 4 10 80 4 4