Exhaust Manifold Nut -
| Detail | Characteristic |
| BEARING SURFACE TYPE | WASHER FACED |
| NUT HEIGHT | 0.380 INCHES NOMINAL |
| NUT STYLE | HEXAGON |
| MATERIAL | COPPER ALLOY OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UN |
| THREAD QUANTITY PER INCH | 28 |
| WIDTH ACROSS FLATS | 0.438 INCHES NOMINAL |
Welcome Back
Winback Offer
Minimum Order |
N/A 1 |
Inventory |
N/A {0} |
Estimated Ship Date |
N/A {N/A} |
Inventory Note |
N/A Need additional stock? Call (877) 920-1876 or email |
Thread Size |
N/A 1/4-28 |
Material |
N/A Copper Alloy |
Type |
N/A Manifold |
Weight |
N/A .005 lb |
Nominal Thread Size |
N/A 0.312 in |
Thread Direction |
N/A Right-Hand |
Bearing Surface Type |
N/A Washer Faced |
Nominal Nut Height |
N/A 0.380 in |
Nut Style |
N/A Hexagon |
Thread Class |
N/A 2B |
Thread Series |
N/A UN |
Thread Quantity per Inch |
N/A 28 |
Nominal Width Across Flats |
N/A 0.438 in |
Alternate Part Number |
N/A 21247 |
NSN |
N/A 5310-00-470-7561 |
NIIN |
N/A 00-470-7561 |
Part # Unpunctuated |
N/A 643967 |
Minimum Order Note |
N/A Minimum order is 1. Must order in increments of 1. |
"Url" |
N/A https://ecasinc.validation.navigator.traceparts.com/item/o-rings-2/o-rings-2/as3491-01 |
Sold In |
N/A Per Package |
Note |
N/A Our inventory is extensive. The majority of the items listed in our catalog are stocked and available for immediate shipment. |
California Residents |
N/A Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. |
