TM 10-8400-201-23 3-12.  REPAIR AND MAINTENANCE - Continued Table 3-11.  Overall, Combat Vehicle Crewmember's Sizing Instructions and Finished Measurements (in inches) X-Small Small Medium Large X-Large Tolerance Half Waist¹ 19 3/4 21 3/4 23 3/4 25 3/4 27 3/4 +3/4 Inseams² +1/2 Short 28 1/2 28 1/2 28 1/2 28 1/2 28 1/2 Regular 30 1/2 30 1/2 30 1/2 30 1/2 30 1/2 Long 32 1/2 32 1/2 32 1/2 32 1/2 32 1/2 Outseams³ 3/4 Short 43 3/4 43 3/4 43 3/4 43 3/4 43 3/4 Regular 46 3/4 46 3/4 46 3/4 46 3/4 46 3/4 Long 49 3/4 49 314 49 3/4 49 3/4 49 3/4 ¹Half waist measurement taken from folded edge to folded edge through the center of pile fastener tapes for side tabs and with drop seat and front zippers closed. ²Inseam is measured from the center of crotch seam to the bottom edge of leg along the seam. ³Outseam is measured from the top edge of the outseam to the bottom with the drop seat zipper closed Table 3-12.  National Stock Numbers for Overall, Combat Vehicle Crewmembers SIZE NSN X-Small-Short 8415-01-111-5020 X-Small-Regular 8415-01-111-5021 X-Small-Long 8415-01-111-5022 Small-Short 8415-01-111-5023 Small Regular 8415-01-111-5024 Small-Long 8415-01-111-5025 Medium-Short 8415-01-111-5026 Medium-Regular 8415-01-111-5027 Medium-Long 8415-01-111-5028 Large-Short 8415-01-111-5029 Large-Regular 8415-01-111-5030 Large-Long 8415-01-111-5031 X-Large-Short 8415-01-111-7166 X-Large-Regular 8415-01-111-5032 X-Large-Long 8415-01-111-5033 Change 5  3-24