PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BU305Bushing,sleeve

Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co · NSN 3120-00-781-0432 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-781-0432 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-781-0432. Primary manufacturer part number: BU305.
Features
  • Bushing,sleeve — FSC 3120
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Surface Treatment: PASSIVATE OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Material: STEEL COMP 303 OVERALL
  • Body Inside Diameter: 0.1040 INCHES MINIMUM AND 0.1080 INCHES MAXIMUM IN
  • Body Outside Diameter: 0.2240 INCHES MINIMUM AND 0.2280 INCHES MAXIMUM IN
  • 2 verified cross-references
Applications
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-781-0432, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN3120-00-781-0432
Primary Part NumberBU305
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerGuardian Electric Manufacturing Co Div Guardian Electric Mfg Co
StatusACTIVE
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Surface TreatmentPASSIVATE OVERALL
Corner ShapeSQUARE ALL CORNERS
MaterialSTEEL COMP 303 OVERALL
Body Inside Diameter0.1040 INCHES MINIMUM AND 0.1080 INCHES MAXIMUM IN
Body Outside Diameter0.2240 INCHES MINIMUM AND 0.2280 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3010-01-273-03102544 INTERCHANGEABLE
Coupling,shaft,rigid
Stromag Inc
Cross-Reference Index
Part NumberManufacturer
BU305 PRIMARY Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
161-000305-00 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
Related Parts
3010-01-273-0310INTERCHANGEABLE
COUPLING,SHAFT,RIGID
2544

Frequently Asked Questions

What is NSN 3120-00-781-0432?

NSN 3120-00-781-0432 is a Bushing,sleeve, manufactured by Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-781-0432?

NSN 3120-00-781-0432 has 2 cross-referenced part numbers: BU305 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), 161-000305-00 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co).

What NSN replaces 3120-00-781-0432?

There is 1 known substitute for 3120-00-781-0432: 3010-01-273-0310. Verify interchangeability with system specifications before substitution.

What are the specifications of BU305?

Key specifications for BU305: Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Surface Treatment: PASSIVATE OVERALL; Corner Shape: SQUARE ALL CORNERS; Material: STEEL COMP 303 OVERALL. 7 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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