(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).
Table 164.023-5(a)
[Use codes 1, 2, 3, 4BC, 4RB, 5(any)]
Federal or military
specification
| Material
| Type
| Class
| Ticket No. or size 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 only | | | 24 through 12. |
(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.