Externally Threaded Ring

Model / MPN: 641543 | NSN: 5365-00-646-7618

A cylindrically shaped item with a concentric bore and a peripheral thread over its entire length or over a portion thereof. One face is drilled, slotted, knurled, or has projecting lugs for installation and/or removal purposes. Excludes retainer, optical element.

Product Details

NATO Stock Number

5365-00-646-7618

Sold in multiples of

10 EA

DEMIL

Thread Pitch Diameters

+2.5404/+2.5455 inches

Thread Pitch Diameters

+2.5404 to 2.5455 inches

Thread Direction

Right-hand

Casehardening Indicator

Not casehardened

Chamfer Angle In Deg

45.0

Chamfer Length

Between 0.052 inches and 0.072 inches

Width

Between 0.250 inches and 0.265 inches

Overall Length

Between 0.245 inches and 0.255 inches

End Radius

1.289 inches

Thread Size

2.578-20

Bore Diameter

Between 2.188 inches and 2.219 inches

Depth

0.215 inches

Bore Shape

Straight

Screw Thread Series Designator

Uns

Drive Type

Keyway

Material Hardness Rating

Between 35.0 rockwell c and 40.0 rockwell c

Thread Location

Both ends

Beveled Thread

Included

Bore Annular Internal Serration

Not included

Setscrew Locking Notch

Not included

Bore Edge Process

Chamfered

Process End Location

Both ends

Material

Steel, e-8740-6 alloy

Material

Steel, e-8740-6 alloy

Surface Treatment

Cadmium, qq-p-416, type 2

Surface Treatment

Cadmium, qq-p-416, type 2

64154 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

Externally Threaded Ring

Pricing and Availability

Certified Quality Assurance

641543 Cross Reference