CollarsBBOEING · BAC
✓ Owner approvedBACC30…R
R — Second oversize collar
Second oversize
PART NUMBER LEARNING
Understand this Part Number
Supported size positions are calculated below. Letter codes and suffixes are never guessed.
Example being read
BACC30…R- Recorded family
BACC30…RUse the collar family's own standard; do not apply a pin or rivet position rule to collar codes.
Automatic decoding stops here because the remaining format is not verified for this family.
Open the full Fastener Part Number Identification note →Quick-reference boundary
Do not select, install or substitute a fastener from this page alone. Confirm the complete part number, diameter, grip, material, finish, head style, effectivity and approved application against current controlled aircraft data and company procedures.