PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203660Bearing Half,sleeve

Cummins Inc. · NSN 3120-00-300-0884 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-300-0884 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-300-0884. Primary manufacturer part number: 203660.
Features
  • Bearing Half,sleeve — FSC 3120
  • Style Designator: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
  • Surface Treatment: LEAD OVERALL
  • Material: OIL LUBRICATING LUBRICATION
  • Material Document and Classification: UNABLE TO DECODE
  • Locking Lug Width: 0.2380 INCHES MINIMUM AND 0.2430 INCHES MAXIMUM IN
  • Distance From Lug End to End of Bearing: 0.1520 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM IN
  • Locking Lug Height: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing Half,sleeve, cataloged under National Stock Number 3120-00-300-0884, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-300-0884
Primary Part Number203660
Item NameBearing Half,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Style DesignatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
Surface TreatmentLEAD OVERALL
MaterialOIL LUBRICATING LUBRICATION
Material Document and ClassificationUNABLE TO DECODE
Locking Lug Width0.2380 INCHES MINIMUM AND 0.2430 INCHES MAXIMUM IN
Distance From Lug End to End of Bearing0.1520 INCHES MINIMUM AND 0.1570 INCHES MAXIMUM IN
Locking Lug Height0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
Locking Lug Length0.2188 INCHES NOMINAL IN
MaterialCOPPER ALLOY INNER LAYER
Antirotation/lubrication Type and Quantity1 HOLE
Material Document and ClassificationUNABLE TO DECODE
Hole Diameter0.1875 INCHES NOMINAL FIRST IN
Body Outside Diameter3.2730 INCHES NOMINAL IN
Body Inside Diameter3.1270 INCHES MINIMUM AND 3.1285 INCHES MAXIMUM IN
MaterialSTEEL COMP 1010 OUTER LAYER
Corner ShapeSQUARE ALL CORNERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5999-00-752-4069 INTERCHANGEABLE
Cap,electrical
Cross-Reference Index
Part NumberManufacturer
1965CP Federal-Mogul Corp Powertrain Products Div (USA)
CB625P Jpi Transportation Products Inc (USA)
203660 PRIMARY Cummins Inc. (USA)
139620 Cummins Inc. (USA)
3120003000884 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Related Parts
5999-00-752-4069INTERCHANGEABLE
CAP,ELECTRICAL

Frequently Asked Questions

What is NSN 3120-00-300-0884?

NSN 3120-00-300-0884 is a Bearing Half,sleeve, manufactured by Cummins Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-300-0884?

NSN 3120-00-300-0884 has 5 cross-referenced part numbers: 1965CP (Federal-Mogul Corp Powertrain Products Div), CB625P (Jpi Transportation Products Inc), 203660 (Cummins Inc.), 139620 (Cummins Inc.), 3120003000884 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales).

What NSN replaces 3120-00-300-0884?

There is 1 known substitute for 3120-00-300-0884: 5999-00-752-4069. Verify interchangeability with system specifications before substitution.

What are the specifications of 203660?

Key specifications for 203660: Overall Length: 1.7200 INCHES MINIMUM AND 1.7300 INCHES MAXIMUM IN; Style Designator: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES; Surface Treatment: LEAD OVERALL; Material: OIL LUBRICATING LUBRICATION. 17 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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