PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A7-157Brush,electrical Contact

Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division · NSN 5977-00-242-1369 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-242-1369 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-242-1369. Primary manufacturer part number: A7-157.
Features
  • Brush,electrical Contact — FSC 5977
  • Material: ELECTROGRAPHITIC
  • Material Document and Classification: CARBONE GRADE 43D MFR REF SINGLE MATERIAL RESPONSE
  • Terminal Type and Quantity: 1 TUBULAR W/HOLE
  • Style Designator: ONE PIECE
  • Contact Face Style: CONCAVE
  • Top Style: FLAT WITH RECTANGULAR SLOT
  • Outer Edge to Slot Edge Distance: 0.484 INCHES NOMINAL IN
Applications
  • Applications requiring Electrographitic construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-242-1369, 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 Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-242-1369
Primary Part NumberA7-157
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division
StatusCANCELLED
MaterialELECTROGRAPHITIC
Material Document and ClassificationCARBONE GRADE 43D MFR REF SINGLE MATERIAL RESPONSE
Terminal Type and Quantity1 TUBULAR W/HOLE
Style DesignatorONE PIECE
Contact Face StyleCONCAVE
Top StyleFLAT WITH RECTANGULAR SLOT
Outer Edge to Slot Edge Distance0.484 INCHES NOMINAL IN
Thickness0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Radius0.922 INCHES NOMINAL IN
Slot Depth0.156 INCHES NOMINAL IN
Width1.121 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Shunt Position Designator8
Slot Width0.156 INCHES NOMINAL IN
Body StyleRECTANGULAR COMMUTATOR
Shunt Insulation Provision and Quantity2 UNINSULATED
Terminal Hole Diameter0.144 INCHES NOMINAL IN
Length0.781 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-663-46577157 INTERCHANGEABLE
Gasket
Purolator Facet Inc. Div Parker Aerospace Filtration Division Dba Purolator Facet, in
3040-00-830-0339B100-030 INTERCHANGEABLE
Collar,shaft
Waukesha Bearings Corporation
Cross-Reference Index
Part NumberManufacturer
A7-157 Eaton Motor Site (USA)
M-A7-157 Miraj Corp (USA)
A7-157 PRIMARY Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division (USA)
A7-157 Mersen Canada Dn Ltd (CAN)
A7-157 Stackpole Corp the (USA)
Related Parts
5330-00-663-4657INTERCHANGEABLE
GASKET
7157
3040-00-830-0339INTERCHANGEABLE
COLLAR,SHAFT
B100-030

Frequently Asked Questions

What is NSN 5977-00-242-1369?

NSN 5977-00-242-1369 is a Brush,electrical Contact, manufactured by Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-242-1369?

NSN 5977-00-242-1369 has 5 cross-referenced part numbers: A7-157 (Eaton Motor Site), M-A7-157 (Miraj Corp), A7-157 (Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division), A7-157 (Mersen Canada Dn Ltd), A7-157 (Stackpole Corp the).

What NSN replaces 5977-00-242-1369?

There are 2 known substitutes for 5977-00-242-1369: 5330-00-663-4657, 3040-00-830-0339. Verify interchangeability with system specifications before substitution.

What are the specifications of A7-157?

Key specifications for A7-157: Material: ELECTROGRAPHITIC; Material Document and Classification: CARBONE GRADE 43D MFR REF SINGLE MATERIAL RESPONSE; Terminal Type and Quantity: 1 TUBULAR W/HOLE; Style Designator: ONE PIECE. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-242-1369 still in active supply?

NSN 5977-00-242-1369 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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