TM 10-8400-201-23 3-12.  REPAIR AND MAINTENANCE-Continued Table 3-2.  FLYERS SHIRT Sizing instructions and finished measurements (in inches) SHIRT PARTS SHORT REGULAR LONG NATIONAL STOCK NUMBERS HALF CHEST¹ Shirt Size NSN X-Small 20 1/4 20 1/4 20 1/4 X-Small Short 8415-00-935-4891 Small 22 1/4 22 1/4 22 1/4 X-Small Regular 8415-00-935-4892 Medium 24 1/4 24 1/4 24 1/4 Small Short 8415-00-935-4894 Large 26 1/4 26 1/4 26 1/4 Small Regular 8415-00-935-4895 X-Large 28 1/4 28 1/4 28 1/4 Small Long 8415-00-935-4896 BACK LENGTH² Medium Short 8415-00-935-4897 X-Small 26 3/4 27 3/4 28 3/4 Medium Regular 8415-00-935-4898 Small 27 3/4 28 3/4 29 3/4 Medium Long 8415-00-935-4899 Medium 28 3/4 29 3/4 30 3/4 Large Short 8415-00-935-4900 Large 29 3/4 30 3/4 31 3/4 Large Regular 8415-00-935-4901 X-Large 30 3/4 31 3/4 32 3/4 Large Long 8415-00-935-6200 SLEEVE LENGTH³ X- Large Short 8415-00-935-6201 X-Small 22 1/2 23 1/2 24 1/2 X-Large Regular 8415-00-935-6202 Small 23 24 25 X-Large Long 8415-00-935-6203 Medium 23 1/2 24 1/2 25 1/2 Large 24 25 26 X-Large 24 1/2 25 1/2 26 1/2 ¹Half chest: Shirt front closed, at base of armhole from folded edge ±  3/4-inch tolerance. ²Back length: At center of back, from collar seam to bottom of shirt ± 1/2-inch tolerance. ³Sleeve length: Along center of top sleeve from top of sleeve to bottom edge of cut ±  1/4-lnch tolerance. 3-16