Model: 641543

Externally Threaded Ring

Properties:

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

NSN

5365-00-646-7618

Part Number

641543

Description

Ring,externally Threaded

CAGE

99551

Part 641543 NSN 5365-00-646-7618

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

08417

FIIG:

T252-D

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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