PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40505Bearing Half,sleeve

Fleet Readiness Center East Div Department of Navy · NSN 3120-01-285-4979 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-285-4979 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-285-4979. Primary manufacturer part number: 40505.
Features
  • Bearing Half,sleeve — FSC 3120
  • Material Document and Classification: UNABLE TO DECODE
  • Surface Treatment: PASSIVATE OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Material: STEEL COMP 630 OVERALL
  • Style Designator: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Body Inside Diameter: 1.8350 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 630 Overall construction
General Description

The Bearing Half,sleeve, cataloged under National Stock Number 3120-01-285-4979, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fleet Readiness Center East Div Department of Navy. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN3120-01-285-4979
Primary Part Number40505
Item NameBearing Half,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerFleet Readiness Center East Div Department of Navy
StatusACTIVE
Material Document and ClassificationUNABLE TO DECODE
Surface TreatmentPASSIVATE OVERALL
Corner ShapeSQUARE ALL CORNERS
MaterialSTEEL COMP 630 OVERALL
Style DesignatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Body Inside Diameter1.8350 INCHES MINIMUM AND 1.8400 INCHES MAXIMUM IN
Body Outside Diameter1.9200 INCHES MINIMUM AND 1.9250 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-196-49413647GB INTERCHANGEABLE
Coupling Half,quick Disconnect
Greenlee Textron Inc.
1680-00-565-965540505 INTERCHANGEABLE
Screw,adjusting
Honeywell International Inc. Div Aerospace - Torrance
4730-01-016-2533 INTERCHANGEABLE
Spud,water Closet
6680-01-028-305240505 INTERCHANGEABLE
Adapter,transmitter
Setra Systems, Inc. Dba Gems Sensors
6210-01-036-478540505 INTERCHANGEABLE
Lens,light
Switchcraft Inc.
5120-01-074-810535414 INTERCHANGEABLE
Bit,screwdriver
Magna Div Vermont American Corp
4730-01-100-9278 INTERCHANGEABLE
Plug,tube Repair
6515-01-106-5538 INTERCHANGEABLE
Pin,bone Nail Guide
3040-01-332-602040505 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
Mti Insulated Products Inc.
5310-01-364-74214050-5 INTERCHANGEABLE
Nut Blank
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
Cross-Reference Index
Part NumberManufacturer
40505 Fleet Readiness Center East Div Department of Navy (USA)
40505 Joint Oil Analysis Program Dba Department of Defense (USA)
Related Parts
4730-00-196-4941INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
3647GB
1680-00-565-9655INTERCHANGEABLE
SCREW,ADJUSTING
40505
4730-01-016-2533INTERCHANGEABLE
SPUD,WATER CLOSET
6680-01-028-3052INTERCHANGEABLE
ADAPTER,TRANSMITTER
40505
6210-01-036-4785INTERCHANGEABLE
LENS,LIGHT
40505
5120-01-074-8105INTERCHANGEABLE
BIT,SCREWDRIVER
35414
4730-01-100-9278INTERCHANGEABLE
PLUG,TUBE REPAIR
6515-01-106-5538INTERCHANGEABLE
PIN,BONE NAIL GUIDE
3040-01-332-6020INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
40505
5310-01-364-7421INTERCHANGEABLE
NUT BLANK
4050-5
6810-01-406-7815INTERCHANGEABLE
FLUORIDE STANDARD
40505
2530-01-439-2440INTERCHANGEABLE
PARTS KIT,STEERING GEAR
40505

Frequently Asked Questions

What is NSN 3120-01-285-4979?

NSN 3120-01-285-4979 is a Bearing Half,sleeve, manufactured by Fleet Readiness Center East Div Department of Navy, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-285-4979?

NSN 3120-01-285-4979 has 2 cross-referenced part numbers: 40505 (Fleet Readiness Center East Div Department of Navy), 40505 (Joint Oil Analysis Program Dba Department of Defense).

What NSN replaces 3120-01-285-4979?

There are 12 known substitutes for 3120-01-285-4979: 4730-00-196-4941, 1680-00-565-9655, 4730-01-016-2533 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40505?

Key specifications for 40505: Overall Length: 0.4050 INCHES MINIMUM AND 0.4150 INCHES MAXIMUM IN; Material Document and Classification: UNABLE TO DECODE; Surface Treatment: PASSIVATE OVERALL; Corner Shape: SQUARE ALL CORNERS. 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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