A-254-294 ITEM NO. 21NT

Comprehensive specifications and application details for: A-254-294 ITEM NO. 21NT Annular Ball Bearing.

Summary

Explore detailed summary information for bearing: A-254-294 ITEM NO. 21NT. Includes NSN, classification group, and identification codes to support sourcing, compliance, and accurate part tracking.

Part Number
A-254-294 ITEM NO. 21NT
Federal Supply Classification
3110 Unmounted Antifriction Bearings
(NSN) National Stock Number
3110-00-987-3723
Item Name Code
00014
Federal Item Identification Guide
A044A0
Assigment Date
01/01/1962

A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see bearing,ball,duplex. Excludes:bearing,ball,airframe.

annual ball bearing for quiet operation application to submarine usage departure from cited document, straight bore shape, zzzw criticality code justification, tight internal fit-up designation, 1.3778 inches minimum and 1.3780 inches maximum bore diameter

Datasheet

Below are the comprehensive technical specifications for bearing: 3110-00-987-3723 . Find dimensions, materials, tolerances, performance characteristics, etc.

Bore Diameter
1.3778 inches minimum and 1.3780 inches maximum
Bore Shape
straight
Criticality Code Justification
zzzw
Departure From Cited Document
annual ball bearing for quiet operation application to submarine usage
Internal Fit-Up Designation
tight
Load Direction
radial
Lubrication Material Document And Classification
mil-g-18709 mil spec single material response
Lubrication Material
grease
Overall Outside Diameter
3.1494 inches minimum and 3.1496 inches maximum
Overall Width
0.8248 inches minimum and 0.8268 inches maximum
Material
steel overall
Nondefinitive Spec/Std Data
111 type and 1 class
Retainer Fabrication Method
pressed
Style Designator
non-loading groove, non-separable
Surface Finish
ground

Replaces

The NSN 3110-00-987-3723 is used in place of the following discontinued or alternate items:

NSN Name Date
3110-00-183-5850 No Name Available 04/18/1969
3110-00-791-1707 No Name Available 04/23/1969
3110-00-862-6970 No Name Available 01/01/1960
3110-01-052-1825 No Name Available 03/01/1980

Frequently Asked Questions

Find quick answers to common questions about bearing: A-254-294 ITEM NO. 21NT. Explore technical specifications, installation tips, maintenance guidelines, regulatory requirements, and troubleshooting advice.

What is the FSCG of the NSN 3110-00-987-3723?
The FSCG of the NSN 3110-00-987-3723 is 3110
Does the NSN 3110-00-987-3723 have a Schedule B code assigned?
Yes, the Schedule B code is 8482105028
Does NSN 3110-00-987-3723 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 3110-00-987-3723 contain precious materials?
Precious metal content is unknown
Does NSN 3110-00-987-3723 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 3110-00-987-3723 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Mon, Jan 1, 1962

Price & Availability

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