PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40446Ring Assembly,electrical Contact

Kollmorgen Corp · NSN 5977-01-194-4510 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-01-194-4510 — this item is cataloged by the U.S. Government under National Stock Number 5977-01-194-4510. Primary manufacturer part number: 40446.
Features
  • Ring Assembly,electrical Contact — FSC 5977
  • Diameter: 1.262 INCHES NOMINAL IN
  • Contact Ring Quantity: 4
  • Brush Quantity: 4
  • Brush Holder Quantity: 4
  • Overall Diameter: 1.935 INCHES NOMINAL IN
  • Brush Quantity Accommodated Per Holder: 1
  • 1 verified cross-reference
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Assembly,electrical Contact, cataloged under National Stock Number 5977-01-194-4510, 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 Kollmorgen Corp. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-01-194-4510
Primary Part Number40446
Item NameRing Assembly,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerKollmorgen Corp
StatusACTIVE
Diameter1.262 INCHES NOMINAL IN
Contact Ring Quantity4
Brush Quantity4
Brush Holder Quantity4
Overall Diameter1.935 INCHES NOMINAL IN
Brush Quantity Accommodated Per Holder1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2910-00-063-7850 INTERCHANGEABLE
Pump,fuel,cam Actuated
3110-00-156-5427 INTERCHANGEABLE
Bearing,ball,annular
5961-01-032-0461 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
40446 PRIMARY Kollmorgen Corp (USA)
Related Parts
2910-00-063-7850INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
3110-00-156-5427INTERCHANGEABLE
BEARING,BALL,ANNULAR
5961-01-032-0461INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5977-01-194-4510?

NSN 5977-01-194-4510 is a Ring Assembly,electrical Contact, manufactured by Kollmorgen Corp, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-01-194-4510?

NSN 5977-01-194-4510 has 1 cross-referenced part number: 40446 (Kollmorgen Corp).

What NSN replaces 5977-01-194-4510?

There are 3 known substitutes for 5977-01-194-4510: 2910-00-063-7850, 3110-00-156-5427, 5961-01-032-0461. Verify interchangeability with system specifications before substitution.

What are the specifications of 40446?

Key specifications for 40446: Diameter: 1.262 INCHES NOMINAL IN; Contact Ring Quantity: 4; Brush Quantity: 4; Special Features: RING SURFACE MATERIAL: IM-5439(MOLD-MK-4474). 8 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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