46 C.F.R. § 164.023-5 Performance; standard thread.
Title 46 - Shipping
(a) Use Codes 1, 2, 3, 4BC, 4RB, 5 (any). Each thread which complies with all of the requirements of a specification listed in table 164.023–5(a) is assigned Use Codes 1, 2, 3, 4BC, 4RB, and 5 (any). (b) Use Code 4B. Each thread which meets the requirements of Federal Specifications V-T-295, Type II, Class A, number size 4, is assigned Use Code 4B.
Title 46: Shipping
PART 164—MATERIALS
Subpart 164.023—Thread for Personal Flotation Devices
§ 164.023-5 Performance; standard thread.
Table 164.023-5(a) [Use codes 1, 2, 3, 4BC, 4RB, 5(any)]---------------------------------------------------------------------------------------------------------------- Federal or military Ticket No. or size specification Material Type Class range----------------------------------------------------------------------------------------------------------------V-T-285E....................... Polyester......... I or II 1 E, F, FF.V-T-295E....................... Nylon............. I or II A E, F, FF.MIL-T-43624A................... Polyester......... ................... .................. 24 through 12.MIL-T-43548C................... Polyester covered ................... .................. 24 through 12. only.----------------------------------------------------------------------------------------------------------------

