PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15546Brush,electrical Contact

Howden Fluid Systems · NSN 5977-00-620-6588 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-620-6588 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-620-6588. Primary manufacturer part number: 15546.
Features
  • Brush,electrical Contact — FSC 5977
  • Width: 0.250 INCHES NOMINAL IN
  • Largest Outside Diameter: 0.172 INCHES NOMINAL IN
  • Pressure Spring Type and Quantity: 1 CYLINDRICAL
  • Shunt Insulation Provision and Quantity: 1 UNINSULATED
  • Terminal Type and Quantity: 1 ROUND CAP W/EARS
  • Contact Face Style: CONCAVE
  • Material: CARBON
Applications
  • Applications requiring Carbon construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-620-6588, 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 Howden Fluid Systems. Government technical data includes 15 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5977-00-620-6588
Primary Part Number15546
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerHowden Fluid Systems
StatusACTIVE
Width0.250 INCHES NOMINAL IN
Largest Outside Diameter0.172 INCHES NOMINAL IN
Pressure Spring Type and Quantity1 CYLINDRICAL
Shunt Insulation Provision and Quantity1 UNINSULATED
Terminal Type and Quantity1 ROUND CAP W/EARS
Contact Face StyleCONCAVE
MaterialCARBON
Brush Shunt Length0.766 INCHES NOMINAL SINGLE SHUNT IN
Style DesignatorONE PIECE
Terminal Diameter0.312 INCHES NOMINAL IN
Thickness0.187 INCHES NOMINAL IN
Body StyleRECTANGULAR COMMUTATOR
Radius0.281 INCHES NOMINAL IN
Length0.438 INCHES NOMINAL IN
Shunt Position Designator5
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3040-00-345-5990140-3 INTERCHANGEABLE
Gearshaft,spur
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5310-00-384-4787203562PC11 INTERCHANGEABLE
Nut,adjusting
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5365-00-824-156115546 INTERCHANGEABLE
Spacer,sleeve
Grimes Aerospace Company
5365-01-174-887315546 INTERCHANGEABLE
Ring,externally Threaded
Ashcroft Inc Dba Heise
5950-01-432-27658519515-1 INTERCHANGEABLE
Reactor
Honeywell International Inc. Dba Honeywell International
5120-01-698-393015546 INTERCHANGEABLE
Burnisher,optical Fiber,hand
Us Conec Ltd (inc)
Cross-Reference Index
Part NumberManufacturer
15546 Howden Fluid Systems (USA)
A15546A Howden Fluid Systems (USA)
15546 Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
A15546A Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. (USA)
7516041P1 Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
Related Parts
3040-00-345-5990INTERCHANGEABLE
GEARSHAFT,SPUR
140-3
5310-00-384-4787INTERCHANGEABLE
NUT,ADJUSTING
203562PC11
5365-00-824-1561INTERCHANGEABLE
SPACER,SLEEVE
15546
5365-01-174-8873INTERCHANGEABLE
RING,EXTERNALLY THREADED
15546
5950-01-432-2765INTERCHANGEABLE
REACTOR
8519515-1
5120-01-698-3930INTERCHANGEABLE
BURNISHER,OPTICAL FIBER,HAND
15546

Frequently Asked Questions

What is NSN 5977-00-620-6588?

NSN 5977-00-620-6588 is a Brush,electrical Contact, manufactured by Howden Fluid Systems, classified under FSC 5977 (No Item Name Available). Status: active.

What are the part numbers for NSN 5977-00-620-6588?

NSN 5977-00-620-6588 has 5 cross-referenced part numbers: 15546 (Howden Fluid Systems), A15546A (Howden Fluid Systems), 15546 (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), A15546A (Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.), 7516041P1 (Lockheed Martin Corp Naval Electronics & Surveillance Systems).

What NSN replaces 5977-00-620-6588?

There are 6 known substitutes for 5977-00-620-6588: 3040-00-345-5990, 5310-00-384-4787, 5365-00-824-1561 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15546?

Key specifications for 15546: Width: 0.250 INCHES NOMINAL IN; Largest Outside Diameter: 0.172 INCHES NOMINAL IN; Pressure Spring Type and Quantity: 1 CYLINDRICAL; Shunt Insulation Provision and Quantity: 1 UNINSULATED. 15 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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