3110-00-345-6121

Find complete technical information, availability, and procurement data for: 3110-00-345-6121

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3110-00-345-6121
Federal Supply Group
Bearings
Federal Supply Classification
3110 Unmounted Antifriction Bearings
National Stock Number
3110-00-345-6121
Item Name Code
00014
Assigment Date
01/20/1974 (52 years ago)

A precision machined metal device used to determine if a firing pin is protruding a required distance from the bolt face of a weapon. The gage may be of various configurations.

170.0 millimeters nominal outer ring outside diameter, 110.00 millimeters nominal bore diameter, 29.00 millimeters nominal outer ring width, 0.2210 inches nominal flange width, 1.4080 inches nominal inner ring width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Bore Diameter
110.00 millimeters nominal
Flange Width
0.2210 inches nominal
Outer Ring Width
29.00 millimeters nominal
Inner Ring Width
1.4080 inches nominal
Outer Ring Outside Diameter
170.0 millimeters nominal
Surface Finish
ground
Retainer Fabrication Method
machined
Load Direction
angular
Bore Shape
straight
Internal Clearance
0.0101 inches minimum radial and 0.0115 inches maximum radial
Standard Tolerance Designation
abec no.7
Contact Angle
33.0 degrees nominal
Special Features
each assembly contains 2 inner races,an outer race,a roller cage,and a set of rollers
Material
steel ball
Material
steel comp 4340 retainer
Material
steel inner ring
Material
steel outer ring
Material Document And Classification
pwa 725,97497 mfr ref 1st material response ball
Material Document And Classification
pwa 725,97497 mfr ref 2nd material response inner ring
Material Document And Classification
pwa 725,97497 mfr ref 3rd material response outer ring
Precious Material
silver

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
3110-01-003-1228 No Name Available 12/01/1983

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
4000352 Annular Ball Bearing
4000425 Annular Ball Bearing
4037050 Annular Ball Bearing

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 3110-00-345-6121?
The FSCG of the NSN 3110-00-345-6121 is 3110
Does the NSN 3110-00-345-6121 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105028
Does NSN 3110-00-345-6121 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 3110-00-345-6121 contain precious materials?
Item contains silver.
Does NSN 3110-00-345-6121 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 3110-00-345-6121 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sun, Jan 20, 1974

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