PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A81Bushing,sleeve

Chicago Pneumatic Tool Co · NSN 3120-00-662-8243 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-662-8243 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-662-8243. Primary manufacturer part number: A81.
Features
  • Bushing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Body Outside Diameter: 6.1150 INCHES MINIMUM AND 6.1350 INCHES MAXIMUM IN
  • Body Inside Diameter: 5.4900 INCHES MINIMUM AND 5.5100 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • 5 verified cross-references
  • Primary manufacturer: Chicago Pneumatic Tool Co
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-662-8243, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Chicago Pneumatic Tool Co. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-662-8243
Primary Part NumberA81
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerChicago Pneumatic Tool Co
StatusCANCELLED
Corner ShapeSQUARE ALL CORNERS
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Body Outside Diameter6.1150 INCHES MINIMUM AND 6.1350 INCHES MAXIMUM IN
Body Inside Diameter5.4900 INCHES MINIMUM AND 5.5100 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5831-00-116-6503 INTERCHANGEABLE
Intercommunication Set
5945-00-321-0856A8-2 INTERCHANGEABLE
Relay Assembly
Honeywell International Inc. Dba Honeywell Div Aerospace ? Redmond Commercial
3030-01-061-7801 INTERCHANGEABLE
Belt,v
Cross-Reference Index
Part NumberManufacturer
A81 Chicago Pneumatic Tool Co (USA)
1E5 Chicago Pneumatic Tool Co (USA)
1E5 Chicago Pneumatic Tool Co (USA)
1E5A81 Chicago Pneumatic Tool Co (USA)
A81 Chicago Pneumatic Tool Co (USA)
Related Parts
5831-00-116-6503INTERCHANGEABLE
INTERCOMMUNICATION SET
5945-00-321-0856INTERCHANGEABLE
RELAY ASSEMBLY
A8-2
3030-01-061-7801INTERCHANGEABLE
BELT,V

Frequently Asked Questions

What is NSN 3120-00-662-8243?

NSN 3120-00-662-8243 is a Bushing,sleeve, manufactured by Chicago Pneumatic Tool Co, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-662-8243?

NSN 3120-00-662-8243 has 5 cross-referenced part numbers: A81 (Chicago Pneumatic Tool Co), 1E5 (Chicago Pneumatic Tool Co), 1E5 (Chicago Pneumatic Tool Co), 1E5A81 (Chicago Pneumatic Tool Co), A81 (Chicago Pneumatic Tool Co).

What NSN replaces 3120-00-662-8243?

There are 3 known substitutes for 3120-00-662-8243: 5831-00-116-6503, 5945-00-321-0856, 3030-01-061-7801. Verify interchangeability with system specifications before substitution.

What are the specifications of A81?

Key specifications for A81: Corner Shape: SQUARE ALL CORNERS; Overall Length: 3.6150 INCHES MINIMUM AND 3.6350 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Body Outside Diameter: 6.1150 INCHES MINIMUM AND 6.1350 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-662-8243 still in active supply?

NSN 3120-00-662-8243 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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