PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CB344032Bearing,sleeve

Bunting Bearings Corp · NSN 3120-00-401-1975 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-401-1975 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-401-1975. Primary manufacturer part number: CB344032.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 2.5020 INCHES MINIMUM AND 2.5030 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Body Inside Diameter: 2.1240 INCHES MINIMUM AND 2.1260 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY 932 OVERALL
  • 7 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 932 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-401-1975, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Bunting Bearings Corp. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-401-1975
Primary Part NumberCB344032
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBunting Bearings Corp
StatusACTIVE
Body Outside Diameter2.5020 INCHES MINIMUM AND 2.5030 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Body Inside Diameter2.1240 INCHES MINIMUM AND 2.1260 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY 932 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1680-00-011-98021000-57 INTERCHANGEABLE
Restrictor
Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc
5310-00-268-70641255 INTERCHANGEABLE
Nut,plain,castellated,hexagon
Agco Corp Parts Opn
7520-00-272-96847520-00-272-9684 INTERCHANGEABLE
Stencil Set,marking
National Industries for the Blind
5905-00-273-9467100-057 INTERCHANGEABLE
Resistor Network,fixed,film
Vishay Thin Film Llc Div Vishay Thin Film
5975-00-587-8860100057 INTERCHANGEABLE
Base,chassis
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5910-00-784-06969998826 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Us Army Aviation and Missile Command
5310-01-067-4159100057 INTERCHANGEABLE
Washer,lock
Mcculloch Corp
5940-01-116-9875100057 INTERCHANGEABLE
Terminal Board Assembly
Mission Systems Davenport Inc.
4820-01-197-4912100057 INTERCHANGEABLE
Adapter,valve
Niantic Tool, Inc. Dba Niantic Tool Co
5342-01-308-2364100057-1 INTERCHANGEABLE
Clamp,support
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
SH-720 Randall Bearing Inc (USA)
H-3231 Bunting Bearings Corp (USA)
CB344032 PRIMARY Bunting Bearings Corp (USA)
100057 PRIMARY Middleby Marshall Inc Conveyor Ovens and Mixers Div (USA)
938GP Johnson Bronze Co (USA)
H-369 Eagle-Picher Industries Inc Kingwell Div (USA)
M3440-32 Altra Industrial Motion Corp. (USA)
Related Parts
1680-00-011-9802INTERCHANGEABLE
RESTRICTOR
1000-57
5310-00-268-7064INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
1255
7520-00-272-9684INTERCHANGEABLE
STENCIL SET,MARKING
7520-00-272-9684
5905-00-273-9467INTERCHANGEABLE
RESISTOR NETWORK,FIXED,FILM
100-057
5975-00-587-8860INTERCHANGEABLE
BASE,CHASSIS
100057
5910-00-784-0696INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
9998826
5310-01-067-4159INTERCHANGEABLE
WASHER,LOCK
100057
5940-01-116-9875INTERCHANGEABLE
TERMINAL BOARD ASSEMBLY
100057
4820-01-197-4912INTERCHANGEABLE
ADAPTER,VALVE
100057
5342-01-308-2364INTERCHANGEABLE
CLAMP,SUPPORT
100057-1
5999-01-383-1580INTERCHANGEABLE
CLIP,ELECTRICAL
100057

Frequently Asked Questions

What is NSN 3120-00-401-1975?

NSN 3120-00-401-1975 is a Bearing,sleeve, manufactured by Bunting Bearings Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-401-1975?

NSN 3120-00-401-1975 has 7 cross-referenced part numbers: SH-720 (Randall Bearing Inc), H-3231 (Bunting Bearings Corp), CB344032 (Bunting Bearings Corp), 100057 (Middleby Marshall Inc Conveyor Ovens and Mixers Div), 938GP (Johnson Bronze Co) and 2 more.

What NSN replaces 3120-00-401-1975?

There are 11 known substitutes for 3120-00-401-1975: 1680-00-011-9802, 5310-00-268-7064, 7520-00-272-9684 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CB344032?

Key specifications for CB344032: Body Outside Diameter: 2.5020 INCHES MINIMUM AND 2.5030 INCHES MAXIMUM IN; Overall Length: 3.9950 INCHES MINIMUM AND 4.0050 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 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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