Dynabrade 54021 1/4"-28 Male 1/4"-20 Male, 1-3/16" Length 
3M 07141, Spectacle Kit 6878/07141(AAD), Accessory, 7000002031
This item has been Discontinued. Please see 3M suggested replacement item 7100254233.
Use with 3M Full Facepiece Respirators 6000 Series.
It permits the wearer to use his/her corrective lenses and to make position adjustment that is most comfortable.
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