PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1552272Holder,electrical Contact Brush

Westinghouse Electric Corp · NSN 5977-00-387-0853 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-387-0853 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-387-0853. Primary manufacturer part number: S1552272.
Features
  • Holder,electrical Contact Brush — FSC 5977
  • Mounting Facility: CLAMP
  • Style Designator: RECTANGLE
  • Brush Quantity Accommodated Per Holder: 1
  • Terminal Type: SCREW
  • Inside Width: 1.252 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
  • Mounting Facility Quantity: 1
  • Inside Length: 1.250 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy Box construction
General Description

The Holder,electrical Contact Brush, cataloged under National Stock Number 5977-00-387-0853, 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 Westinghouse Electric Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 35 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-387-0853
Primary Part NumberS1552272
Item NameHolder,electrical Contact Brush
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusCANCELLED
Mounting FacilityCLAMP
Style DesignatorRECTANGLE
Brush Quantity Accommodated Per Holder1
Terminal TypeSCREW
Inside Width1.252 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
Mounting Facility Quantity1
Inside Length1.250 INCHES NOMINAL IN
Brush Spring AdjustabilityADJUSTABLE
Brush Pressure Spring Type AccommodatedSPIRAL TORSION
Overall Thickness5.000 INCHES NOMINAL IN
Inside Thickness0.501 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
Terminal Quantity1
MaterialCOPPER ALLOY BOX
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
6645-00-255-1369 INTERCHANGEABLE
Meter,time Totalizing
5305-00-297-0768 INTERCHANGEABLE
Screw,cap,hexagon Head
5325-00-685-5912271774 INTERCHANGEABLE
Ring,retaining
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5935-01-523-7870155-2272 INTERCHANGEABLE
Connector,plug,electrical
Caterpillar Inc Div Caterpillar Defense
Cross-Reference Index
Part NumberManufacturer
24J53PC44 Westinghouse Electric Corp (USA)
1552272 Westinghouse Electric Corp (USA)
1JH635PC26 Westinghouse Electric Corp (USA)
24J58PC20 Westinghouse Electric Corp (USA)
37J102ITEM5 Westinghouse Electric Corp (USA)
35J927ITEM5 Westinghouse Electric Corp (USA)
35J455ITEM4 Westinghouse Electric Corp (USA)
34J470ITEM5 Westinghouse Electric Corp (USA)
37J108ITEM5 Westinghouse Electric Corp (USA)
35J456ITEM5 Westinghouse Electric Corp (USA)
31J918ITEM3 Westinghouse Electric Corp (USA)
24J53ITEM5 Westinghouse Electric Corp (USA)
33J151PC20 Westinghouse Electric Corp (USA)
S271774 Westinghouse Electric Corp (USA)
37J102PC21 Westinghouse Electric Corp (USA)
34J526PC20 Westinghouse Electric Corp (USA)
35J456PC21 Westinghouse Electric Corp (USA)
35J927PC21 Westinghouse Electric Corp (USA)
37J194ITEM5 Westinghouse Electric Corp (USA)
33J151ITEM4 Westinghouse Electric Corp (USA)
Related Parts
6645-00-255-1369INTERCHANGEABLE
METER,TIME TOTALIZING
5305-00-297-0768INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5325-00-685-5912INTERCHANGEABLE
RING,RETAINING
271774
5935-01-523-7870INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
155-2272

Frequently Asked Questions

What is NSN 5977-00-387-0853?

NSN 5977-00-387-0853 is a Holder,electrical Contact Brush, manufactured by Westinghouse Electric Corp, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-387-0853?

NSN 5977-00-387-0853 has 35 cross-referenced part numbers: 24J53PC44 (Westinghouse Electric Corp), 1552272 (Westinghouse Electric Corp), 1JH635PC26 (Westinghouse Electric Corp), 24J58PC20 (Westinghouse Electric Corp), 37J102ITEM5 (Westinghouse Electric Corp) and 30 more.

What NSN replaces 5977-00-387-0853?

There are 4 known substitutes for 5977-00-387-0853: 6645-00-255-1369, 5305-00-297-0768, 5325-00-685-5912 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1552272?

Key specifications for S1552272: Mounting Facility: CLAMP; Style Designator: RECTANGLE; Overall Width: 1.469 INCHES NOMINAL IN; Brush Quantity Accommodated Per Holder: 1. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-387-0853 still in active supply?

NSN 5977-00-387-0853 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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