PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EM518031Holder Assembly,electrical Conta

Electric Machinery Dresser Industries Inc · NSN 5977-00-252-8875 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-252-8875 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-252-8875. Primary manufacturer part number: EM518031.
Features
  • Holder Assembly,electrical Conta — FSC 5977
  • Brush Quantity Accommodated Per Holder: 1
  • Angle Between Corresponding Holder Groups in Deg: 45.0
  • Holder Position Adjustability: NONADJUSTABLE
  • Holder Group Quantity: 2
  • Holder Quantity Per Assembly: 2
  • Assembly Grouping Position: CIRCLE-GROUPED
  • Total Brush Quantity Accommodated: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Holder Assembly,electrical Conta, cataloged under National Stock Number 5977-00-252-8875, 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 Electric Machinery Dresser Industries Inc. Government technical data includes 8 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-252-8875
Primary Part NumberEM518031
Item NameHolder Assembly,electrical Conta
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerElectric Machinery Dresser Industries Inc
StatusCANCELLED
Brush Quantity Accommodated Per Holder1
Angle Between Corresponding Holder Groups in Deg45.0
Holder Position AdjustabilityNONADJUSTABLE
Holder Group Quantity2
Holder Quantity Per Assembly2
Assembly Grouping PositionCIRCLE-GROUPED
Total Brush Quantity Accommodated2
Individual Group Holder Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-084-1228 INTERCHANGEABLE
Seal,nonmetallic Special Shaped
3110-00-100-8515E0005 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
5905-00-114-5413 INTERCHANGEABLE
Resistor,fixed,composition
5905-00-185-6906 INTERCHANGEABLE
Resistor,fixed,composition
5962-00-244-2366D5 INTERCHANGEABLE
Microcircuit,linear
Data Device Corp Dba Beta Transformer Technology
5110-00-260-1702 INTERCHANGEABLE
Reamer,hand
3120-00-336-5386BS1025PC12 INTERCHANGEABLE
Bushing,sleeve
Circor Naval Solutions Llc Dba Warren Pumps
1650-00-340-038122761 INTERCHANGEABLE
Fitting,shuttle Val
Hydro-Aire Aerospace Corp
6740-00-364-7117 INTERCHANGEABLE
Printer,projection,photographic
3110-00-554-3232204S INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
Cross-Reference Index
Part NumberManufacturer
142A29 Electric Machinery Dresser Industries Inc (USA)
22761 Electric Machinery Dresser Industries Inc (USA)
113A29 Electric Machinery Dresser Industries Inc (USA)
D5 Electric Machinery Dresser Industries Inc (USA)
EM518031 PRIMARY Electric Machinery Dresser Industries Inc (USA)
Related Parts
5330-00-084-1228INTERCHANGEABLE
SEAL,NONMETALLIC SPECIAL SHAPED
3110-00-100-8515INTERCHANGEABLE
BEARING,BALL,THRUST
E0005
5905-00-114-5413INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5905-00-185-6906INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5962-00-244-2366INTERCHANGEABLE
MICROCIRCUIT,LINEAR
D5
5110-00-260-1702INTERCHANGEABLE
REAMER,HAND
3120-00-336-5386INTERCHANGEABLE
BUSHING,SLEEVE
BS1025PC12
1650-00-340-0381INTERCHANGEABLE
FITTING,SHUTTLE VAL
22761
6740-00-364-7117INTERCHANGEABLE
PRINTER,PROJECTION,PHOTOGRAPHIC
3110-00-554-3232INTERCHANGEABLE
BEARING,BALL,ANNULAR
204S
5360-00-598-7448INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5935-00-754-8808INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
31-300

Frequently Asked Questions

What is NSN 5977-00-252-8875?

NSN 5977-00-252-8875 is a Holder Assembly,electrical Conta, manufactured by Electric Machinery Dresser Industries Inc, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-252-8875?

NSN 5977-00-252-8875 has 5 cross-referenced part numbers: 142A29 (Electric Machinery Dresser Industries Inc), 22761 (Electric Machinery Dresser Industries Inc), 113A29 (Electric Machinery Dresser Industries Inc), D5 (Electric Machinery Dresser Industries Inc), EM518031 (Electric Machinery Dresser Industries Inc).

What NSN replaces 5977-00-252-8875?

There are 12 known substitutes for 5977-00-252-8875: 5330-00-084-1228, 3110-00-100-8515, 5905-00-114-5413 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EM518031?

Key specifications for EM518031: Brush Quantity Accommodated Per Holder: 1; Angle Between Corresponding Holder Groups in Deg: 45.0; Holder Position Adjustability: NONADJUSTABLE; Holder Group Quantity: 2. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-252-8875 still in active supply?

NSN 5977-00-252-8875 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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