PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

60521XHolder,electrical Contact Brush

Reliance Electric Company Dba Reliance & Dodge Brands · NSN 5977-00-364-0759 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-364-0759 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-364-0759. Primary manufacturer part number: 60521X.
Features
  • Holder,electrical Contact Brush — FSC 5977
  • Brush Pressure Spring Type Accommodated: FLAT FINGER
  • Style Designator: RECTANGLE BEVELED
  • Brush Quantity Accommodated Per Holder: 1
  • Mounting Facility: CLAMP
  • Mounting Facility Quantity: 1
  • 5 verified cross-references
  • Primary manufacturer: Reliance Electric Company Dba Reliance & Dodge Brands
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-364-0759, 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 Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, 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
NSN5977-00-364-0759
Primary Part Number60521X
Item NameHolder,electrical Contact Brush
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerReliance Electric Company Dba Reliance & Dodge Brands
StatusACTIVE
Brush Pressure Spring Type AccommodatedFLAT FINGER
Style DesignatorRECTANGLE BEVELED
Brush Quantity Accommodated Per Holder1
Mounting FacilityCLAMP
Mounting Facility Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-053-53876243 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5331-00-165-1961AS3209-243 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5930-00-258-48676243 INTERCHANGEABLE
Switch,lever
Standard Gribsby Inc
3120-00-363-7150 INTERCHANGEABLE
Roller,linear-Rotary Motion
4310-00-383-49986243 INTERCHANGEABLE
Parts Kit
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5945-00-410-1881HP1141113-1 INTERCHANGEABLE
Solenoid,electrical
Tactair Fluid Controls Inc
6240-00-538-0920EFR INTERCHANGEABLE
Lamp,incandescent
American National Standards Institute Incorporated Dba American National Standards Institute
3540-00-565-62433540-00-565-6243 INTERCHANGEABLE
Strapping and Sealing Kit
Independent Metal Strap Co Inc
5930-00-655-1575 INTERCHANGEABLE
Switch,toggle
5340-00-787-3209K3-99-116-07 INTERCHANGEABLE
Catch,clamping
Southco Inc
Cross-Reference Index
Part NumberManufacturer
60521X Reliance Electric (USA)
60521 Reliance Electric Company Dba Reliance & Dodge Brands (USA)
6243 Almon Johnson Ltd (USA)
60521X PRIMARY Reliance Electric Company Dba Reliance & Dodge Brands (USA)
60521 Reliance Electric (USA)
Related Parts
5330-00-053-5387INTERCHANGEABLE
GASKET
6243
5331-00-165-1961INTERCHANGEABLE
O-RING
AS3209-243
5930-00-258-4867INTERCHANGEABLE
SWITCH,LEVER
6243
3120-00-363-7150INTERCHANGEABLE
ROLLER,LINEAR-ROTARY MOTION
4310-00-383-4998INTERCHANGEABLE
PARTS KIT
6243
5945-00-410-1881INTERCHANGEABLE
SOLENOID,ELECTRICAL
HP1141113-1
6240-00-538-0920INTERCHANGEABLE
LAMP,INCANDESCENT
EFR
3540-00-565-6243INTERCHANGEABLE
STRAPPING AND SEALING KIT
3540-00-565-6243
5930-00-655-1575INTERCHANGEABLE
SWITCH,TOGGLE
5340-00-787-3209INTERCHANGEABLE
CATCH,CLAMPING
K3-99-116-07
5410-00-952-9019INTERCHANGEABLE
BUILDING
6515-01-560-7908INTERCHANGEABLE
COLLET,PIN
6203-126-000

Frequently Asked Questions

What is NSN 5977-00-364-0759?

NSN 5977-00-364-0759 is a Holder,electrical Contact Brush, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-364-0759?

NSN 5977-00-364-0759 has 5 cross-referenced part numbers: 60521X (Reliance Electric), 60521 (Reliance Electric Company Dba Reliance & Dodge Brands), 6243 (Almon Johnson Ltd), 60521X (Reliance Electric Company Dba Reliance & Dodge Brands), 60521 (Reliance Electric).

What NSN replaces 5977-00-364-0759?

There are 12 known substitutes for 5977-00-364-0759: 5330-00-053-5387, 5331-00-165-1961, 5930-00-258-4867 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 60521X?

Key specifications for 60521X: Brush Pressure Spring Type Accommodated: FLAT FINGER; Style Designator: RECTANGLE BEVELED; Brush Quantity Accommodated Per Holder: 1; Mounting Facility: CLAMP. 6 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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