PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1-6456Bearing,sleeve

American Tractor Equipment Corp · NSN 3120-00-288-1000 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-288-1000 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-288-1000. Primary manufacturer part number: 1-6456.
Features
  • Bearing,sleeve — FSC 3120
  • Material: STEEL COMP 1020 OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Corner Shape: SQUARE ALL CORNERS
  • Body Outside Diameter: 3.4870 INCHES MINIMUM AND 3.4880 INCHES MAXIMUM IN
  • Body Inside Diameter: 2.9950 INCHES MINIMUM AND 3.0050 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: American Tractor Equipment Corp
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 1020 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-288-1000, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is American Tractor Equipment Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-288-1000
Primary Part Number1-6456
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAmerican Tractor Equipment Corp
StatusACTIVE
MaterialSTEEL COMP 1020 OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeSQUARE ALL CORNERS
Body Outside Diameter3.4870 INCHES MINIMUM AND 3.4880 INCHES MAXIMUM IN
Body Inside Diameter2.9950 INCHES MINIMUM AND 3.0050 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4730-00-261-4219 INTERCHANGEABLE
Elbow,pipe
5310-00-413-5347 INTERCHANGEABLE
Washer,flat
5305-00-457-3140 INTERCHANGEABLE
Screw,rear Sight
5305-01-273-831616456 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
5310-01-358-797816456 INTERCHANGEABLE
Washer,spring Tension
New Venture Gear Inc New Process Gear Div
5310-01-524-9864164-56 INTERCHANGEABLE
Nut,plain,hexagon
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
6515-01-591-604205.003.104S INTERCHANGEABLE
Blade,bone Saw,power
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
1-6456 American Tractor Equipment Corp (USA)
Related Parts
4730-00-261-4219INTERCHANGEABLE
ELBOW,PIPE
5310-00-413-5347INTERCHANGEABLE
WASHER,FLAT
5305-00-457-3140INTERCHANGEABLE
SCREW,REAR SIGHT
5305-01-273-8316INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
16456
5310-01-358-7978INTERCHANGEABLE
WASHER,SPRING TENSION
16456
5310-01-524-9864INTERCHANGEABLE
NUT,PLAIN,HEXAGON
164-56
6515-01-591-6042INTERCHANGEABLE
BLADE,BONE SAW,POWER
05.003.104S

Frequently Asked Questions

What is NSN 3120-00-288-1000?

NSN 3120-00-288-1000 is a Bearing,sleeve, manufactured by American Tractor Equipment Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-288-1000?

NSN 3120-00-288-1000 has 1 cross-referenced part number: 1-6456 (American Tractor Equipment Corp).

What NSN replaces 3120-00-288-1000?

There are 7 known substitutes for 3120-00-288-1000: 4730-00-261-4219, 5310-00-413-5347, 5305-00-457-3140 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1-6456?

Key specifications for 1-6456: Material: STEEL COMP 1020 OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 3.4870 INCHES MINIMUM AND 3.4880 INCHES MAXIMUM IN. 6 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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