HB 1-401-1974
Hexagon Thick Nut (English Version)
- Standard No.
- HB 1-401-1974
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aviation
- Status
- Replace By
- HB 1-401-1983
- Latest
- HB 1-401-2002
HB 1-401-1974 history
- 2003 HB 1-401-2002 Hexagon thick nuts
- 1970 HB 1-401-1983 Hexagon Thick Nut
- 1970 HB 1-401-1974 Hexagon Thick Nut
