PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B5-4Bearing,ball,thrust

W. M. Berg, Inc. · NSN 3110-01-068-2977 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-068-2977 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-068-2977. Primary manufacturer part number: B5-4.
Features
  • Bearing,ball,thrust — FSC 3110
  • Material: PLASTIC POLYAMIDE NYLON RETAINER
  • Material: STEEL THRUST PLATE
  • Material: STEEL BALL
  • Overall Outside Diameter: 0.6170 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
  • Surface Finish: GROUND
  • Bore Smallest Diameter: 0.3125 INCHES MINIMUM AND 0.3205 INCHES MAXIMUM IN
  • Style Designator: FLAT RACE SURFACE, IN LINE BALL RETAINER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Plastic Polyamide Nylon Retainer construction
General Description

The Bearing,ball,thrust, cataloged under National Stock Number 3110-01-068-2977, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is W. M. Berg, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-068-2977
Primary Part NumberB5-4
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerW. M. Berg, Inc.
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON RETAINER
MaterialSTEEL THRUST PLATE
MaterialSTEEL BALL
Overall Outside Diameter0.6170 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN
Surface FinishGROUND
Bore Smallest Diameter0.3125 INCHES MINIMUM AND 0.3205 INCHES MAXIMUM IN
Style DesignatorFLAT RACE SURFACE, IN LINE BALL RETAINER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-065-4903 INTERCHANGEABLE
Handle,socket Wrench
3110-00-144-8488110381-3 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-00-258-5960B-5-4 INTERCHANGEABLE
Switch,pressure
Ellis & Watts International, Llc
3030-00-274-6079B54 INTERCHANGEABLE
Belt,v
Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division
5977-00-669-9883101 INTERCHANGEABLE
Brush,electrical Contact
Busch Tractor Inc Dba Buschwackers
5940-00-706-93697069369 INTERCHANGEABLE
Terminal,lug
U S Army Tank Automotive Command Amsta-Im-Mm
5340-00-819-0546SSB-54 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
5120-00-833-2175B-54 INTERCHANGEABLE
Screwdriver,offset
Ngk Metals Corporation Dba N G K Berylco
3030-00-849-3881B54 INTERCHANGEABLE
Belt,v
Emerson Electric Co Browning Mfg Div
4730-01-233-3434 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
B5-4 W. M. Berg, Inc. (USA)
Related Parts
5120-00-065-4903INTERCHANGEABLE
HANDLE,SOCKET WRENCH
3110-00-144-8488INTERCHANGEABLE
BEARING,BALL,ANNULAR
110381-3
5930-00-258-5960INTERCHANGEABLE
SWITCH,PRESSURE
B-5-4
3030-00-274-6079INTERCHANGEABLE
BELT,V
B54
5977-00-669-9883INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
101
5940-00-706-9369INTERCHANGEABLE
TERMINAL,LUG
7069369
5340-00-819-0546INTERCHANGEABLE
PLUNGER,QUICK RELEASE
SSB-54
5120-00-833-2175INTERCHANGEABLE
SCREWDRIVER,OFFSET
B-54
3030-00-849-3881INTERCHANGEABLE
BELT,V
B54
4730-01-233-3434INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3530-01-280-4270INTERCHANGEABLE
GUIDE,THREAD,SEWING MACHINE
B54
4140-01-333-7281INTERCHANGEABLE
FAN,CENTRIFUGAL
B-54

Frequently Asked Questions

What is NSN 3110-01-068-2977?

NSN 3110-01-068-2977 is a Bearing,ball,thrust, manufactured by W. M. Berg, Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-068-2977?

NSN 3110-01-068-2977 has 1 cross-referenced part number: B5-4 (W. M. Berg, Inc.).

What NSN replaces 3110-01-068-2977?

There are 12 known substitutes for 3110-01-068-2977: 5120-00-065-4903, 3110-00-144-8488, 5930-00-258-5960 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B5-4?

Key specifications for B5-4: Material: PLASTIC POLYAMIDE NYLON RETAINER; Material: STEEL THRUST PLATE; Material: STEEL BALL; Overall Outside Diameter: 0.6170 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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