PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3309Brush,electrical Contact

Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc · NSN 5977-00-636-4606 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-636-4606 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-636-4606. Primary manufacturer part number: 3309.
Features
  • Brush,electrical Contact — FSC 5977
  • Contact Face Style: CONCAVE
  • Body Style: RECTANGULAR COMMUTATOR
  • Radius: 0.266 INCHES NOMINAL IN
  • Largest Outside Diameter: 0.120 INCHES NOMINAL IN
  • Spring Free Length: 0.438 INCHES NOMINAL IN
  • Terminal Type and Quantity: 1 ROUND CAP W/EARS
  • Material: CARBON
Applications
  • Applications requiring Carbon construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-636-4606, is classified within Federal Supply Class 5977 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc. Government technical data includes 16 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-636-4606
Primary Part Number3309
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerDucommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
StatusACTIVE
Contact Face StyleCONCAVE
Body StyleRECTANGULAR COMMUTATOR
Radius0.266 INCHES NOMINAL IN
Largest Outside Diameter0.120 INCHES NOMINAL IN
Spring Free Length0.438 INCHES NOMINAL IN
Terminal Type and Quantity1 ROUND CAP W/EARS
MaterialCARBON
Material Document and ClassificationAMERICAN ELECTRONICS GRADE 63A MFR REF SINGLE MATERIAL RESPONSE A
Style DesignatorONE PIECE
Brush Shunt Length0.438 INCHES NOMINAL SINGLE SHUNT IN
Shunt Insulation Provision and Quantity1 UNINSULATED
Pressure Spring Type and Quantity1 CYLINDRICAL
Shunt Position Designator5
Length0.218 INCHES NOMINAL IN
Width0.152 INCHES NOMINAL IN
Thickness0.152 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-144-86690210591 INTERCHANGEABLE
Bearing,ball,annular
Agco Corp Parts Opn
5310-00-176-7902 INTERCHANGEABLE
Nut,plain,castellated,hexagon
2815-00-288-4859 INTERCHANGEABLE
Ring Set,piston
5120-00-467-5104820-4530101PC1 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Naval Ship Systems Command
3110-00-554-3468 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-60703309A INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
5330-00-763-28143309 INTERCHANGEABLE
Seal
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
9525-00-840-3513 INTERCHANGEABLE
Wire,nonelectrical
5905-00-978-1009 INTERCHANGEABLE
Resistor,variable,wire Wound,non
6930-01-201-27263309 INTERCHANGEABLE
Indicator Simulated
Lilbern Design of Virginia Llc
Cross-Reference Index
Part NumberManufacturer
3309 PRIMARY Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA)
Related Parts
3110-00-144-8669INTERCHANGEABLE
BEARING,BALL,ANNULAR
0210591
5310-00-176-7902INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
2815-00-288-4859INTERCHANGEABLE
RING SET,PISTON
5120-00-467-5104INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
820-4530101PC1
3110-00-554-3468INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-6070INTERCHANGEABLE
BEARING,BALL,ANNULAR
3309A
5330-00-763-2814INTERCHANGEABLE
SEAL
3309
9525-00-840-3513INTERCHANGEABLE
WIRE,NONELECTRICAL
5905-00-978-1009INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
6930-01-201-2726INTERCHANGEABLE
INDICATOR SIMULATED
3309
4730-01-218-8985INTERCHANGEABLE
COUPLING,PIPE
4940-01-478-1460INTERCHANGEABLE
SHOP EQUIPMENT,UTILITY
3309

Frequently Asked Questions

What is NSN 5977-00-636-4606?

NSN 5977-00-636-4606 is a Brush,electrical Contact, manufactured by Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-636-4606?

NSN 5977-00-636-4606 has 1 cross-referenced part number: 3309 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc).

What NSN replaces 5977-00-636-4606?

There are 12 known substitutes for 5977-00-636-4606: 3110-00-144-8669, 5310-00-176-7902, 2815-00-288-4859 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3309?

Key specifications for 3309: Contact Face Style: CONCAVE; Body Style: RECTANGULAR COMMUTATOR; Radius: 0.266 INCHES NOMINAL IN; Largest Outside Diameter: 0.120 INCHES NOMINAL IN. 16 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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