"The item's dimensioning and tolerancing adhere to ANS I 14.5-1973 standards, with color laser protection that meets certain requirements; any visible scratches, digs, or inclusions within the critical vision area upon inspection shall warrant rejection. Specifications MIL-F-13926 and MIL-0-13830 apply. When mounted on an integrated helmet unit according to TM9-1270-233-23 and P, the visor spring assembly must satisfy the following conditions: it should move smoothly throughout its full range of travel without binding from the down position, transition to the stow position under spring action upon releasing the stowing knob, provide protection against projectiles as per MIL-V-43511B paragraph 3.4.9, and offer two-notch laser protection as detailed in DWG 10063037-103 Note 7."