PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23657Bushing,sleeve

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 3120-00-944-5305 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-944-5305 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-944-5305. Primary manufacturer part number: 23657.
Features
  • Bushing,sleeve — FSC 3120
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Style Designator: SOLID, EXTERNAL FLANGE ONE END
  • Material: COPPER ALLOY OVERALL
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Flange Outside Diameter: 0.7188 INCHES MINIMUM AND 0.7812 INCHES MAXIMUM IN
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Bushing,sleeve, cataloged under National Stock Number 3120-00-944-5305, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. Government technical data includes 12 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-944-5305
Primary Part Number23657
Item NameBushing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
MaterialCOPPER ALLOY OVERALL
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Flange Outside Diameter0.7188 INCHES MINIMUM AND 0.7812 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Flange Width0.2050 INCHES MINIMUM AND 0.2250 INCHES MAXIMUM IN
Body Outside Diameter0.5015 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Body Inside Diameter0.2494 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-067-947823659 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
1630-00-534-641423657 INTERCHANGEABLE
Plunger,slide Valve
Hydro-Aire Aerospace Corp
5310-00-563-43911229H216 INTERCHANGEABLE
Washer
Meritor Heavy Vehicle Systems, Llc
5340-01-371-200423657 INTERCHANGEABLE
Rod End,threaded
Hoffman/new Yorker, Inc.
6640-01-496-533321290-00 INTERCHANGEABLE
Test Kit,chlorine
Hach Company Dba Hach Co
Cross-Reference Index
Part NumberManufacturer
23657 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
Related Parts
5330-00-067-9478INTERCHANGEABLE
SEAL,PLAIN ENCASED
23659
1630-00-534-6414INTERCHANGEABLE
PLUNGER,SLIDE VALVE
23657
5310-00-563-4391INTERCHANGEABLE
WASHER
1229H216
5340-01-371-2004INTERCHANGEABLE
ROD END,THREADED
23657
6640-01-496-5333INTERCHANGEABLE
TEST KIT,CHLORINE
21290-00

Frequently Asked Questions

What is NSN 3120-00-944-5305?

NSN 3120-00-944-5305 is a Bushing,sleeve, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-944-5305?

NSN 3120-00-944-5305 has 1 cross-referenced part number: 23657 (L3harris Technologies, Inc. Div Space and Airborne Systems).

What NSN replaces 3120-00-944-5305?

There are 5 known substitutes for 3120-00-944-5305: 5330-00-067-9478, 1630-00-534-6414, 5310-00-563-4391 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23657?

Key specifications for 23657: Corner Shape: SQUARE LEFT FLANGE BODY CORNER; Style Designator: SOLID, EXTERNAL FLANGE ONE END; Material: COPPER ALLOY OVERALL; Corner Shape: SQUARE INSIDE LEFT CORNER. 13 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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