PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA-238Bearing,sleeve

Beemer Precision Inc · NSN 3120-01-209-7405 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-209-7405 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-209-7405. Primary manufacturer part number: AA-238.
Features
  • Bearing,sleeve — FSC 3120
  • Material: COPPER ALLOY 841 OVERALL
  • Material Document and Classification: MIL-B-5687 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 0.2525 INCHES NOMINAL IN
  • Material: OIL LUBRICATING LUBRICATION
  • Body Inside Diameter: 0.1565 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 841 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-209-7405, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Beemer Precision Inc. Government technical data includes 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-209-7405
Primary Part NumberAA-238
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerBeemer Precision Inc
StatusACTIVE
MaterialCOPPER ALLOY 841 OVERALL
Material Document and ClassificationMIL-B-5687 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter0.2525 INCHES NOMINAL IN
MaterialOIL LUBRICATING LUBRICATION
Body Inside Diameter0.1565 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4510-00-202-7686203SLOW-000 INTERCHANGEABLE
Seat,water Closet
Bemis Manufacturing Company Inc Dba Church Seat Co Div Olsonite Seat Company
4510-00-202-7688955CT-000 INTERCHANGEABLE
Seat,water Closet
Bemis Manufacturing Company Inc Dba Church Seat Co Div Olsonite Seat Company
4510-00-202-77021955CT-000 INTERCHANGEABLE
Seat,water Closet
Bemis Manufacturing Company Inc Dba Church Seat Co Div Olsonite Seat Company
4510-00-247-13701955CT-047 INTERCHANGEABLE
Seat,water Closet
Bemis Manufacturing Company Inc Dba Church Seat Co Div Olsonite Seat Company
Cross-Reference Index
Part NumberManufacturer
AA-238 PRIMARY Beemer Precision Inc (USA)
AA-238 Bigger C M Inc (USA)
Related Parts
4510-00-202-7686INTERCHANGEABLE
SEAT,WATER CLOSET
203SLOW-000
4510-00-202-7688INTERCHANGEABLE
SEAT,WATER CLOSET
955CT-000
4510-00-202-7702INTERCHANGEABLE
SEAT,WATER CLOSET
1955CT-000
4510-00-247-1370INTERCHANGEABLE
SEAT,WATER CLOSET
1955CT-047

Frequently Asked Questions

What is NSN 3120-01-209-7405?

NSN 3120-01-209-7405 is a Bearing,sleeve, manufactured by Beemer Precision Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-209-7405?

NSN 3120-01-209-7405 has 2 cross-referenced part numbers: AA-238 (Beemer Precision Inc), AA-238 (Bigger C M Inc).

What NSN replaces 3120-01-209-7405?

There are 4 known substitutes for 3120-01-209-7405: 4510-00-202-7686, 4510-00-202-7688, 4510-00-202-7702 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA-238?

Key specifications for AA-238: Material: COPPER ALLOY 841 OVERALL; Material Document and Classification: MIL-B-5687 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 0.2525 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com