PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA-521-9Bushing,sleeve

Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc · NSN 5365-01-658-9336 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-658-9336 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-658-9336. Primary manufacturer part number: AA-521-9.
Features
  • Bushing,sleeve — FSC 5365
  • Material: BRONZE OVERALL
  • Body Outside Diameter: 0.503 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc
Applications
  • Applications requiring Bronze Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 5365-01-658-9336, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc. Government technical data includes 2 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-658-9336
Primary Part NumberAA-521-9
Item NameBushing,sleeve
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerReliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc
StatusACTIVE
MaterialBRONZE OVERALL
Body Outside Diameter0.503 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-00-489-4145AA521-9 INTERCHANGEABLE
Bearing,sleeve
Beemer Precision Inc
Cross-Reference Index
Part NumberManufacturer
AA-521-9 PRIMARY Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc (USA)
MA310001-39 The Boeing Company Div Defense (USA)
Related Parts
3120-00-489-4145INTERCHANGEABLE
BEARING,SLEEVE
AA521-9

Frequently Asked Questions

What is NSN 5365-01-658-9336?

NSN 5365-01-658-9336 is a Bushing,sleeve, manufactured by Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-658-9336?

NSN 5365-01-658-9336 has 2 cross-referenced part numbers: AA-521-9 (Reliable Bronze & Mfg., Inc. Dba Reliable Bronze & Manufacturing Co Inc), MA310001-39 (The Boeing Company Div Defense).

What NSN replaces 5365-01-658-9336?

There is 1 known substitute for 5365-01-658-9336: 3120-00-489-4145. Verify interchangeability with system specifications before substitution.

What are the specifications of AA-521-9?

Key specifications for AA-521-9: Material: BRONZE OVERALL; Part Name Assigned by Controlling Agency: BUSHING,SLEEVE; End Item Identification: KC-46A SE A; Body Outside Diameter: 0.503 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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