The Exhaust Manifold Nut - 643967 is a high-strength fastener designed for securing exhaust manifold components in automotive and industrial engine applications. Its durable construction ensures reliable performance under high-temperature and vibration conditions commonly encountered in heavy-duty machinery and power generation equipment. Purchasing this nut guarantees a secure, long-lasting connection critical for maintaining engine efficiency and safety in demanding environments.This item is widely used throughout the aerospace industry in commercial, military, and general aviation applications where precision, durability, and reliable performance are essential.
hide-Asset:
2489P
hide-Quantity Increment:
1
note-Sold In:
Per Package
note-Units Per Package:
1
spec-Material:
Copper Alloy
note-Note:
Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment.
hide-ItemID:
57087
spec-Thread Size:
1/4"-28
spec-Type:
Manifold
spec-Nominal Thread Size:
0.312"
spec-Thread Direction:
Right-Hand
spec-Bearing Surface Type:
Washer Faced
spec-Nominal Nut Height:
0.38"
spec-Nut Style:
Hexagon
spec-Thread Class:
2B
spec-Thread Series:
UN
spec-Thread Quantity per Inch:
28
spec-Nominal Width Across Flats:
0.438"
spec-Alternate Part Number:
21247
spec-NSN:
5310-00-470-7561
spec-NIIN:
00-470-7561
hide-Part # Unpunctuated:
643967
spec-Minimum Order Note:
Minimum order is 1. Must order in increments of 1.
spec-Inventory Note:
Need additional stock? Call (877) 920-1876 or email
spec-California Residents:
Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
