PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-449Bearing,sleeve

Dresser Industries Inc Leroi Div · NSN 3120-00-661-9076 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-9076 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-9076. Primary manufacturer part number: 21-449.
Features
  • Bearing,sleeve — FSC 3120
  • Body Inside Diameter: 1.5003 INCHES MINIMUM AND 1.5006 INCHES MAXIMUM IN
  • Hole Diameter: 0.3800 INCHES NOMINAL FIRST IN
  • Lubricant Accommodation Style: GROOVED CIRCULAR
  • Surface Groove Location and Quantity: 1 INTERNAL
  • Material: COPPER ALLOY INNER LAYER
  • Body Outside Diameter: 1.6245 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Inner Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-9076, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-661-9076
Primary Part Number21-449
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusCANCELLED
Body Inside Diameter1.5003 INCHES MINIMUM AND 1.5006 INCHES MAXIMUM IN
Hole Diameter0.3800 INCHES NOMINAL FIRST IN
Lubricant Accommodation StyleGROOVED CIRCULAR
Surface Groove Location and Quantity1 INTERNAL
MaterialCOPPER ALLOY INNER LAYER
Body Outside Diameter1.6245 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
MaterialSTEEL OUTER LAYER
Style DesignatorSPLIT, PLAIN, NO OUTSIDE FLANGES
Antirotation/lubrication Type and Quantity1 HOLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-012-0390120390 INTERCHANGEABLE
Washer,flat
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-445-3554 INTERCHANGEABLE
Washer,flat
5930-00-460-5749 INTERCHANGEABLE
Switch,push
5355-00-933-6582 INTERCHANGEABLE
Knob
5930-01-313-0484120390 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5310-01-587-445695571A847 INTERCHANGEABLE
Washer,flat
Mcmaster-Carr Supply Co
Cross-Reference Index
Part NumberManufacturer
21-449 PRIMARY Dresser Industries Inc Leroi Div (USA)
120390 Jpi Transportation Products Inc (USA)
8333158 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5310-00-012-0390INTERCHANGEABLE
WASHER,FLAT
120390
5310-00-445-3554INTERCHANGEABLE
WASHER,FLAT
5930-00-460-5749INTERCHANGEABLE
SWITCH,PUSH
5355-00-933-6582INTERCHANGEABLE
KNOB
5930-01-313-0484INTERCHANGEABLE
SWITCH,FLOW
120390
5310-01-587-4456INTERCHANGEABLE
WASHER,FLAT
95571A847

Frequently Asked Questions

What is NSN 3120-00-661-9076?

NSN 3120-00-661-9076 is a Bearing,sleeve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-661-9076?

NSN 3120-00-661-9076 has 3 cross-referenced part numbers: 21-449 (Dresser Industries Inc Leroi Div), 120390 (Jpi Transportation Products Inc), 8333158 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 3120-00-661-9076?

There are 6 known substitutes for 3120-00-661-9076: 5310-00-012-0390, 5310-00-445-3554, 5930-00-460-5749 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-449?

Key specifications for 21-449: Body Inside Diameter: 1.5003 INCHES MINIMUM AND 1.5006 INCHES MAXIMUM IN; Hole Diameter: 0.3800 INCHES NOMINAL FIRST IN; Lubricant Accommodation Style: GROOVED CIRCULAR; Surface Groove Location and Quantity: 1 INTERNAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-661-9076 still in active supply?

NSN 3120-00-661-9076 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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