HB 1-139-1974
Oval Head Cone Bolts (English Version)
- Standard No.
- HB 1-139-1974
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aviation
- Status
- Replace By
- HB 1-139-1983
- Latest
- HB 1-139-1995
HB 1-139-1974 history
- 1995 HB 1-139-1995 Oval Head Cone Bolts
- 1970 HB 1-139-1983 Oval Head Cone Bolts
- 1970 HB 1-139-1974 Oval Head Cone Bolts
