PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ATSB12-5DBearing,plain,self-Aligning

New Hampshire Ball Bearings Inc Div Astro Division · NSN 3120-00-057-8310 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-057-8310 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-057-8310. Primary manufacturer part number: ATSB12-5D.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Outer Member Outside Diameter: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
  • Inner Member Width: 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
  • Outer Member Width: 0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN
  • Bore Diameter: 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
  • Style Designator: WITH INSERT AND/OR LINER
  • 3 verified cross-references
  • Primary manufacturer: New Hampshire Ball Bearings Inc Div Astro Division
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-057-8310, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. Government technical data includes 5 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-057-8310
Primary Part NumberATSB12-5D
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNew Hampshire Ball Bearings Inc Div Astro Division
StatusACTIVE
Outer Member Outside Diameter1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN
Inner Member Width0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Outer Member Width0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN
Bore Diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
Style DesignatorWITH INSERT AND/OR LINER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-534-882176541 INTERCHANGEABLE
Gasket
L3harris Technologies, Inc Div Space & Airborne Systems
5950-01-069-9400 INTERCHANGEABLE
Coil,radio Frequency
Cross-Reference Index
Part NumberManufacturer
ATSB12-5D PRIMARY New Hampshire Ball Bearings Inc Div Astro Division (USA)
114HS681-1 The Boeing Company (USA)
76541 PRIMARY Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
Related Parts
5330-00-534-8821INTERCHANGEABLE
GASKET
76541
5950-01-069-9400INTERCHANGEABLE
COIL,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 3120-00-057-8310?

NSN 3120-00-057-8310 is a Bearing,plain,self-Aligning, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-057-8310?

NSN 3120-00-057-8310 has 3 cross-referenced part numbers: ATSB12-5D (New Hampshire Ball Bearings Inc Div Astro Division), 114HS681-1 (The Boeing Company), 76541 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics).

What NSN replaces 3120-00-057-8310?

There are 2 known substitutes for 3120-00-057-8310: 5330-00-534-8821, 5950-01-069-9400. Verify interchangeability with system specifications before substitution.

What are the specifications of ATSB12-5D?

Key specifications for ATSB12-5D: Outer Member Outside Diameter: 1.7495 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN; Inner Member Width: 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN; Outer Member Width: 0.7920 INCHES MINIMUM AND 0.8020 INCHES MAXIMUM IN; Bore Diameter: 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM 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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