PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58757-1Bearing,sleeve

Mckiernan-Terry Marine Div of Litton Systems Inc · NSN 3120-00-239-0623 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-239-0623 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-239-0623. Primary manufacturer part number: 58757-1.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN
  • Body Inside Diameter: 2.5140 INCHES MINIMUM AND 2.5160 INCHES MAXIMUM IN
  • 3 verified cross-references
  • Primary manufacturer: Mckiernan-Terry Marine Div of Litton Systems Inc
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-239-0623, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Mckiernan-Terry Marine Div of Litton Systems Inc. Government technical data includes 4 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-239-0623
Primary Part Number58757-1
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMckiernan-Terry Marine Div of Litton Systems Inc
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN
Body Inside Diameter2.5140 INCHES MINIMUM AND 2.5160 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5360-01-150-1372 INTERCHANGEABLE
Spring,helical,compression
Cross-Reference Index
Part NumberManufacturer
58757-1 Mckiernan-Terry Marine Div of Litton Systems Inc (USA)
58757-1 L3harris Technologies, Inc. (USA)
58757-1 L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
5360-01-150-1372INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION

Frequently Asked Questions

What is NSN 3120-00-239-0623?

NSN 3120-00-239-0623 is a Bearing,sleeve, manufactured by Mckiernan-Terry Marine Div of Litton Systems Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-239-0623?

NSN 3120-00-239-0623 has 3 cross-referenced part numbers: 58757-1 (Mckiernan-Terry Marine Div of Litton Systems Inc), 58757-1 (L3harris Technologies, Inc.), 58757-1 (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 3120-00-239-0623?

There is 1 known substitute for 3120-00-239-0623: 5360-01-150-1372. Verify interchangeability with system specifications before substitution.

What are the specifications of 58757-1?

Key specifications for 58757-1: Corner Shape: SQUARE ALL CORNERS; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 2.7540 INCHES MINIMUM AND 2.7560 INCHES MAXIMUM IN; Overall Length: 1.5000 INCHES NOMINAL IN. 5 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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