PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1129ABearing,ball,annular

Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic · NSN 3110-00-155-6774 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-6774 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-6774. Primary manufacturer part number: M1129A.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: RADIAL
  • Shield Quantity: 2
  • Lubrication Material: GREASE
  • Lubrication Material Document and Classification: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
  • Surface Finish: GROUND
  • Internal Fit-Up Designation: STANDARD
  • Bore Shape: STRAIGHT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Shield construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-6774, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 39 commercial cross-references from 21 manufacturers, 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
NSN3110-00-155-6774
Primary Part NumberM1129A
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTwin Disc, Incorporated Dba Twin Disc Mid-Atlantic
StatusACTIVE
Load DirectionRADIAL
Shield Quantity2
Lubrication MaterialGREASE
Lubrication Material Document and ClassificationDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
MaterialSTEEL SHIELD
MaterialSTEEL BALL
MaterialSTEEL INNER RING
Style DesignatorLOADING GROOVE, NON-SEPARABLE
Bore Diameter60.00 MILLIMETERS NOMINAL MM
Overall Outside Diameter110.00 MILLIMETERS NOMINAL MM
MaterialSTEEL OUTER RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2530-00-103-8452 INTERCHANGEABLE
Brake Shoe Set
9150-00-118-1112SHELL SPIRAX S4 TXM INTERCHANGEABLE
Hydraulic Fluid,automatic Transm
Shell Oil Co
2810-00-118-963232818A INTERCHANGEABLE
Pin Assembly
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6515-00-290-1938 INTERCHANGEABLE
Suture,absorbable,surgical
1660-00-719-468770064-1 INTERCHANGEABLE
Kit,overhaul
Meggitt North Hollywood Inc
5305-00-762-6290 INTERCHANGEABLE
Screw,cap,hexagon Head
5306-00-930-4415C344-9 INTERCHANGEABLE
Bolt,shoulder
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
6220-00-986-0758 INTERCHANGEABLE
Lens,light
5360-01-160-468632818 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5915-01-257-3484 INTERCHANGEABLE
Network,circuit Protection
Cross-Reference Index
Part NumberManufacturer
M1129A PRIMARY Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
VM1129 Celtrac Corp (USA)
700641 Army Weapons Command Attn Amswe-Ree-S (USA)
R13V Bay City Shovels, Inc (USA)
666362014-ITEM-6 Gunnebo Johnson Corporation Div Gunnebo Industries, Inc. (USA)
D3449 American Standard Inc Westinghouse Air Brake Co Div (USA)
B67G Bay City Shovels, Inc (USA)
1212MFF Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
1212SS Federal-Mogul Corp Government Sales Dept (USA)
77212 General Motors Corp Delco Moraine Ndh Div (USA)
C3449 American Standard Inc Westinghouse Air Brake Co Div (USA)
77212 PRIMARY Manitowoc Engineering Co Division of the Manitowoc Co Inc (USA)
FA212DD Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations (USA)
1212SS Ntn Bearing Corporation of America (USA)
77212 General Motors Corp (USA)
K120V Bay City Shovels, Inc (USA)
K93V Bay City Shovels, Inc (USA)
M1129 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
B186FM0D30-1718 Bay City Shovels, Inc (USA)
64619D PRIMARY Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
Related Parts
2530-00-103-8452INTERCHANGEABLE
BRAKE SHOE SET
9150-00-118-1112INTERCHANGEABLE
HYDRAULIC FLUID,AUTOMATIC TRANSM
SHELL SPIRAX S4 TXM
2810-00-118-9632INTERCHANGEABLE
PIN ASSEMBLY
32818A
6515-00-290-1938INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL
1660-00-719-4687INTERCHANGEABLE
KIT,OVERHAUL
70064-1
5305-00-762-6290INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5306-00-930-4415INTERCHANGEABLE
BOLT,SHOULDER
C344-9
6220-00-986-0758INTERCHANGEABLE
LENS,LIGHT
5360-01-160-4686INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
32818
5915-01-257-3484INTERCHANGEABLE
NETWORK,CIRCUIT PROTECTION
5950-01-392-3624INTERCHANGEABLE
TRANSFORMER,POWER
70064-1
4520-01-469-2765INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
77212

Frequently Asked Questions

What is NSN 3110-00-155-6774?

NSN 3110-00-155-6774 is a Bearing,ball,annular, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-6774?

NSN 3110-00-155-6774 has 39 cross-referenced part numbers: M1129A (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), VM1129 (Celtrac Corp), 700641 (Army Weapons Command Attn Amswe-Ree-S), R13V (Bay City Shovels, Inc), 666362014-ITEM-6 (Gunnebo Johnson Corporation Div Gunnebo Industries, Inc.) and 34 more.

What NSN replaces 3110-00-155-6774?

There are 12 known substitutes for 3110-00-155-6774: 2530-00-103-8452, 9150-00-118-1112, 2810-00-118-9632 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M1129A?

Key specifications for M1129A: Load Direction: RADIAL; Shield Quantity: 2; Lubrication Material: GREASE; Lubrication Material Document and Classification: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE. 16 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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