PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1420-8Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-903-9759 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-903-9759 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-903-9759. Primary manufacturer part number: B1420-8.
Features
  • Bearing,sleeve — FSC 3120
  • Material: OIL LUBRICATING LUBRICATION
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN
  • Corner Shape: SQUARE ALL CORNERS
  • Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-903-9759, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-903-9759
Primary Part NumberB1420-8
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
MaterialOIL LUBRICATING LUBRICATION
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter1.2520 INCHES MINIMUM AND 1.2530 INCHES MAXIMUM IN
Corner ShapeSQUARE ALL CORNERS
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6720-00-663-3091K24 INTERCHANGEABLE
Camera,still Picture
Eastman Kodak Co
5120-00-829-769158-0143 INTERCHANGEABLE
Wrench Set,open End,fixed
Moody Tools, Inc.
5140-01-081-78263284773 INTERCHANGEABLE
Tool Box,portable
Naval Sea Systems Command
5120-01-278-4814K-20 INTERCHANGEABLE
Knife,putty
Ampco Partners, Ltd. Dba Ampco Safety Tools
5140-01-532-6049K24 INTERCHANGEABLE
Tool Box,portable
Kennedy Manufacturing Company
Cross-Reference Index
Part NumberManufacturer
B1420-8 PRIMARY Altra Industrial Motion Corp. (USA)
V1803 Waterous Company (USA)
AA1242-3 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
K24 Waterous Company (USA)
213-0710 Harsco Corp Bmy-Combat Systems Div (USA)
A1242-3 Chrysler Corp Amplex Div (USA)
SLF876-16 Masten Bunting Eagle-Picher Bearings Div Eagle-Picher Industries Inc (USA)
AA1242-3 PRIMARY Beemer Precision Inc (USA)
AA1242-3 PRIMARY Chrysler Corp Amplex Div (USA)
00213-0710 Harsco Corp Bmy-Combat Systems Div (USA)
Related Parts
6720-00-663-3091INTERCHANGEABLE
CAMERA,STILL PICTURE
K24
5120-00-829-7691INTERCHANGEABLE
WRENCH SET,OPEN END,FIXED
58-0143
5140-01-081-7826INTERCHANGEABLE
TOOL BOX,PORTABLE
3284773
5120-01-278-4814INTERCHANGEABLE
KNIFE,PUTTY
K-20
5140-01-532-6049INTERCHANGEABLE
TOOL BOX,PORTABLE
K24

Frequently Asked Questions

What is NSN 3120-00-903-9759?

NSN 3120-00-903-9759 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-903-9759?

NSN 3120-00-903-9759 has 10 cross-referenced part numbers: B1420-8 (Altra Industrial Motion Corp.), V1803 (Waterous Company), AA1242-3 (Chrysler Realty Company Llc Dba Daimler Chrysler), K24 (Waterous Company), 213-0710 (Harsco Corp Bmy-Combat Systems Div) and 5 more.

What NSN replaces 3120-00-903-9759?

There are 5 known substitutes for 3120-00-903-9759: 6720-00-663-3091, 5120-00-829-7691, 5140-01-081-7826 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1420-8?

Key specifications for B1420-8: Material: OIL LUBRICATING LUBRICATION; Material: COPPER ALLOY OVERALL; Body Inside Diameter: 0.8770 INCHES MINIMUM AND 0.8780 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 8 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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