PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

135263Bushing,sleeve

Astronautics Corporation of America · NSN 3120-01-193-6978 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-193-6978 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-193-6978. Primary manufacturer part number: 135263.
Features
  • Bushing,sleeve — FSC 3120
  • Surface Treatment: PASSIVATE OVERALL
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, EXTERNAL FLANGE ONE END
  • Flange Outside Diameter: 0.3700 INCHES NOMINAL IN
  • Material: STEEL COMP 303 OVERALL
  • Flange Width: 0.0310 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM IN
  • Material Document and Classification: ASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-01-193-6978, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Astronautics Corporation of America. Government technical data includes 10 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-193-6978
Primary Part Number135263
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAstronautics Corporation of America
StatusACTIVE
Surface TreatmentPASSIVATE OVERALL
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Flange Outside Diameter0.3700 INCHES NOMINAL IN
MaterialSTEEL COMP 303 OVERALL
Flange Width0.0310 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM IN
Material Document and ClassificationASTM A582,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Body Inside Diameter0.1875 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN
Body Outside Diameter0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4520-00-389-4782135263 INTERCHANGEABLE
Heating Element,electrical,nonim
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Cross-Reference Index
Part NumberManufacturer
135263 PRIMARY Astronautics Corporation of America (USA)
Related Parts
4520-00-389-4782INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
135263

Frequently Asked Questions

What is NSN 3120-01-193-6978?

NSN 3120-01-193-6978 is a Bushing,sleeve, manufactured by Astronautics Corporation of America, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-193-6978?

NSN 3120-01-193-6978 has 1 cross-referenced part number: 135263 (Astronautics Corporation of America).

What NSN replaces 3120-01-193-6978?

There is 1 known substitute for 3120-01-193-6978: 4520-00-389-4782. Verify interchangeability with system specifications before substitution.

What are the specifications of 135263?

Key specifications for 135263: Surface Treatment: PASSIVATE OVERALL; Corner Shape: SQUARE ALL CORNERS; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Flange Outside Diameter: 0.3700 INCHES NOMINAL IN. 11 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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