PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

01-300Bearing,sleeve

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 3120-00-305-5382 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-305-5382 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-305-5382. Primary manufacturer part number: 01-300.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Body Inside Diameter: 0.3750 INCHES MINIMUM AND 0.3755 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.5600 INCHES MINIMUM AND 0.5605 INCHES MAXIMUM IN
  • Flange Outside Diameter: 0.8740 INCHES MINIMUM AND 0.8745 INCHES MAXIMUM IN
  • Flange Width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Ontic Engineering & Manufacturing, Inc Dba Ontic Us
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-305-5382, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN3120-00-305-5382
Primary Part Number01-300
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
Body Inside Diameter0.3750 INCHES MINIMUM AND 0.3755 INCHES MAXIMUM IN
Body Outside Diameter0.5600 INCHES MINIMUM AND 0.5605 INCHES MAXIMUM IN
Flange Outside Diameter0.8740 INCHES MINIMUM AND 0.8745 INCHES MAXIMUM IN
Flange Width0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5310-00-052-545501300 INTERCHANGEABLE
Washer,flat
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5133-00-833-463310033 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
5910-01-043-4846 INTERCHANGEABLE
Capacitor,fixed,electrolytic
6550-01-316-8746R01300 INTERCHANGEABLE
Culture Medium,chocolate Agar Wi
Remel Inc.
9150-01-534-8623 INTERCHANGEABLE
Lubricating Oil,gear
5136-01-556-1504 INTERCHANGEABLE
Restorer Set,thread
3990-01-664-492901300 INTERCHANGEABLE
Tie Down,cargo,vehicle
B. Erickson Manufacturing Ltd Dba Erickson Mfg.
Cross-Reference Index
Part NumberManufacturer
01-300 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
01-300 Donallco Inc (USA)
Related Parts
5310-00-052-5455INTERCHANGEABLE
WASHER,FLAT
01300
5133-00-833-4633INTERCHANGEABLE
DRILL,TWIST
10033
5910-01-043-4846INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
6550-01-316-8746INTERCHANGEABLE
CULTURE MEDIUM,CHOCOLATE AGAR WI
R01300
9150-01-534-8623INTERCHANGEABLE
LUBRICATING OIL,GEAR
5136-01-556-1504INTERCHANGEABLE
RESTORER SET,THREAD
3990-01-664-4929INTERCHANGEABLE
TIE DOWN,CARGO,VEHICLE
01300

Frequently Asked Questions

What is NSN 3120-00-305-5382?

NSN 3120-00-305-5382 is a Bearing,sleeve, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-305-5382?

NSN 3120-00-305-5382 has 2 cross-referenced part numbers: 01-300 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 01-300 (Donallco Inc).

What NSN replaces 3120-00-305-5382?

There are 7 known substitutes for 3120-00-305-5382: 5310-00-052-5455, 5133-00-833-4633, 5910-01-043-4846 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 01-300?

Key specifications for 01-300: Corner Shape: SQUARE ALL CORNERS; Body Inside Diameter: 0.3750 INCHES MINIMUM AND 0.3755 INCHES MAXIMUM IN; Body Outside Diameter: 0.5600 INCHES MINIMUM AND 0.5605 INCHES MAXIMUM IN; Overall Length: 0.4010 INCHES MINIMUM AND 0.4060 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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