PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6321Bearing,sleeve

Botoman Mfg Co Inc · NSN 3120-00-474-3601 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-474-3601 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-474-3601. Primary manufacturer part number: 6321.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 0.2150 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.5280 INCHES MINIMUM AND 0.5300 INCHES MAXIMUM IN
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Material: COPPER ALLOY OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-474-3601, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Botoman Mfg Co Inc. Government technical data includes 8 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-474-3601
Primary Part Number6321
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBotoman Mfg Co Inc
StatusACTIVE
Body Inside Diameter0.2150 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN
Body Outside Diameter0.5280 INCHES MINIMUM AND 0.5300 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
MaterialCOPPER ALLOY OVERALL
Corner ShapeCHAMFERED OUTSIDE LEFT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-073-2165664880 INTERCHANGEABLE
Nut
Clark Material Handling Company
3110-00-144-8954 INTERCHANGEABLE
Bearing,ball,annular
5935-00-508-05698177158 INTERCHANGEABLE
Plug,tip
Us Army Aviation and Missile Command
6625-01-089-1884 INTERCHANGEABLE
Analyzer,spectrum
3110-01-308-91466321 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
5340-01-344-6851 INTERCHANGEABLE
Bracket,mounting
6515-01-560-92676910D-607 INTERCHANGEABLE
Case,carrying,nebulizer System
Sunrise Medical Hhg Inc. Dba Sunrise Medical Hm Healthcare
Cross-Reference Index
Part NumberManufacturer
6321 Botoman Mfg Co Inc (USA)
Related Parts
5310-00-073-2165INTERCHANGEABLE
NUT
664880
3110-00-144-8954INTERCHANGEABLE
BEARING,BALL,ANNULAR
5935-00-508-0569INTERCHANGEABLE
PLUG,TIP
8177158
6625-01-089-1884INTERCHANGEABLE
ANALYZER,SPECTRUM
3110-01-308-9146INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
6321
5340-01-344-6851INTERCHANGEABLE
BRACKET,MOUNTING
6515-01-560-9267INTERCHANGEABLE
CASE,CARRYING,NEBULIZER SYSTEM
6910D-607

Frequently Asked Questions

What is NSN 3120-00-474-3601?

NSN 3120-00-474-3601 is a Bearing,sleeve, manufactured by Botoman Mfg Co Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-474-3601?

NSN 3120-00-474-3601 has 1 cross-referenced part number: 6321 (Botoman Mfg Co Inc).

What NSN replaces 3120-00-474-3601?

There are 7 known substitutes for 3120-00-474-3601: 5310-00-073-2165, 3110-00-144-8954, 5935-00-508-0569 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6321?

Key specifications for 6321: Overall Length: 0.4590 INCHES MINIMUM AND 0.4790 INCHES MAXIMUM IN; Body Inside Diameter: 0.2150 INCHES MINIMUM AND 0.2160 INCHES MAXIMUM IN; Body Outside Diameter: 0.5280 INCHES MINIMUM AND 0.5300 INCHES MAXIMUM IN; Corner Shape: SQUARE INSIDE LEFT CORNER. 9 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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