PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HM3950-339-3641Bearing,sleeve

Naval Inventory Control Point Mechanicsburg · NSN 3120-00-339-3641 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-339-3641 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-339-3641. Primary manufacturer part number: HM3950-339-3641.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Antirotation/lubrication Type and Quantity: 5 HOLE
  • Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY
  • Body Inside Diameter: 3.4440 INCHES MINIMUM AND 3.4470 INCHES MAXIMUM IN
  • Body Outside Diameter: 4.4360 INCHES MINIMUM AND 4.4370 INCHES MAXIMUM IN
  • Surface Finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 938 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-339-3641, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN3120-00-339-3641
Primary Part NumberHM3950-339-3641
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Antirotation/lubrication Type and Quantity5 HOLE
Surface Finish125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
Surface Finish125.0 MICROINCHES RIGHT END SURFACE OF BODY
Body Inside Diameter3.4440 INCHES MINIMUM AND 3.4470 INCHES MAXIMUM IN
Body Outside Diameter4.4360 INCHES MINIMUM AND 4.4370 INCHES MAXIMUM IN
Surface Finish125.0 MICROINCHES LEFT END SURFACE OF BODY
MaterialCOPPER ALLOY 938 OVERALL
Surface Finish125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Lubricant Accommodation StyleGROOVED DOUBLE LOOP
Hole Diameter0.3880 INCHES MINIMUM AND 0.3920 INCHES MAXIMUM AND 0.3900 INCHES NOMINAL FIRST IN
Style DesignatorSEGMENTED, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6695-00-009-5920 INTERCHANGEABLE
Sampler,liquid
5815-00-129-19457380 INTERCHANGEABLE
Assembly Switch
Telemechanics Inc
6240-00-261-84307380 INTERCHANGEABLE
Lamp,incandescent
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
6625-00-832-9051 INTERCHANGEABLE
Test Set,electrical Power
3030-01-084-239815380 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
4820-01-248-89427380 INTERCHANGEABLE
Cap,valve
Cooper Interconnect, Inc. Dba Cooper Interconnect Div Interconnect
5995-01-353-5724807250-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Hamilton Sundstrand Corporation Dba Collins Aerospace
1650-01-354-29027380 INTERCHANGEABLE
Accumulator,hydraulic
Pneudraulics, Inc.
6515-01-387-6106 INTERCHANGEABLE
Electrode,grounding,electrosurgi
8040-01-561-3011135303 INTERCHANGEABLE
Activator,adhesive
Loctite Corp
Cross-Reference Index
Part NumberManufacturer
S2000-674361PC104 Naval Ship Systems Command (USA)
AD22S2000-271088PC63 Naval Ship Systems Command (USA)
B5020R American Hoist and Derrick Co
HM3950-339-3641 PRIMARY Naval Inventory Control Point Mechanicsburg (USA)
AD22S2000-271083PC63 Naval Ship Systems Command (USA)
7380 Naval Inventory Control Point Mechanicsburg (USA)
DD5403PC104 Besser Company Dba Besser (USA)
Related Parts
6695-00-009-5920INTERCHANGEABLE
SAMPLER,LIQUID
5815-00-129-1945INTERCHANGEABLE
ASSEMBLY SWITCH
7380
6240-00-261-8430INTERCHANGEABLE
LAMP,INCANDESCENT
7380
6625-00-832-9051INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
3030-01-084-2398INTERCHANGEABLE
BELT,V
15380
4820-01-248-8942INTERCHANGEABLE
CAP,VALVE
7380
5995-01-353-5724INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
807250-1
1650-01-354-2902INTERCHANGEABLE
ACCUMULATOR,HYDRAULIC
7380
6515-01-387-6106INTERCHANGEABLE
ELECTRODE,GROUNDING,ELECTROSURGI
8040-01-561-3011INTERCHANGEABLE
ACTIVATOR,ADHESIVE
135303
5340-01-718-3491INTERCHANGEABLE
SEAL,ANTIPILFERAGE

Frequently Asked Questions

What is NSN 3120-00-339-3641?

NSN 3120-00-339-3641 is a Bearing,sleeve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-339-3641?

NSN 3120-00-339-3641 has 7 cross-referenced part numbers: S2000-674361PC104 (Naval Ship Systems Command), AD22S2000-271088PC63 (Naval Ship Systems Command), B5020R (American Hoist and Derrick Co), HM3950-339-3641 (Naval Inventory Control Point Mechanicsburg), AD22S2000-271083PC63 (Naval Ship Systems Command) and 2 more.

What NSN replaces 3120-00-339-3641?

There are 11 known substitutes for 3120-00-339-3641: 6695-00-009-5920, 5815-00-129-1945, 6240-00-261-8430 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HM3950-339-3641?

Key specifications for HM3950-339-3641: Corner Shape: SQUARE ALL CORNERS; Antirotation/lubrication Type and Quantity: 5 HOLE; Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY. 13 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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