PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-C-314890Brush,electrical Contact

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5977-00-521-8272 · FSC 5977 · No Item Name Available
Verified by PartsTable
NSN 5977-00-521-8272 — this item is cataloged by the U.S. Government under National Stock Number 5977-00-521-8272. Primary manufacturer part number: SM-C-314890.
Features
  • Brush,electrical Contact — FSC 5977
  • Body Style: RECTANGULAR
  • Width: 0.182 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
  • Shunt Insulation Provision and Quantity: 1 UNINSULATED
  • Contact Face Style: FLAT
  • Material: GRAPHITE
  • Pressure Spring Type and Quantity: 1 CYLINDRICAL
  • Brush Shunt Length: 0.469 INCHES MINIMUM AND 0.593 INCHES MAXIMUM SINGLE SHUNT IN
Applications
  • Applications requiring Graphite construction
General Description

The Brush,electrical Contact, cataloged under National Stock Number 5977-00-521-8272, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5977-00-521-8272
Primary Part NumberSM-C-314890
Item NameBrush,electrical Contact
FSC / FSG5977 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Body StyleRECTANGULAR
Width0.182 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
Shunt Insulation Provision and Quantity1 UNINSULATED
Contact Face StyleFLAT
MaterialGRAPHITE
Pressure Spring Type and Quantity1 CYLINDRICAL
Brush Shunt Length0.469 INCHES MINIMUM AND 0.593 INCHES MAXIMUM SINGLE SHUNT IN
Style DesignatorONE PIECE
Material Document and ClassificationGENERAL CARBIDE CO GRADE CC MFR REF SINGLE MATERIAL RESPONSE
Largest Outside Diameter0.188 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
Spring Free Length0.688 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN
Shunt Position Designator5
Length0.531 INCHES MINIMUM AND 0.593 INCHES MAXIMUM IN
Terminal Type and Quantity1 ROUND CAP
Thickness0.182 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN
Terminal Diameter0.185 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
2810-00-118-170451543 INTERCHANGEABLE
Gasket,carburetor a
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5331-00-165-1944AS3209-225 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
1680-00-279-36745154-3 INTERCHANGEABLE
Cover,seat Back,pilot
Lockheed Martin Corp
5330-00-417-172951543A INTERCHANGEABLE
Gasket
Fairbanks Morse, Llc
5961-00-458-68665-154-3 INTERCHANGEABLE
Semiconductor Device,diode
Bird Electronic Corporation Div Bird Electronic Corp
1650-00-486-184551543 INTERCHANGEABLE
Contact-Stationary
Goodrich Corporation Dba Goodrich Corp
4420-01-464-173951543 INTERCHANGEABLE
Reservoir Assembly,
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
51543 Kleinschmidt Inc (USA)
SM-C-314890 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
51543A Kleinschmidt Inc (USA)
S02461 General Carbon Co (USA)
Related Parts
2810-00-118-1704INTERCHANGEABLE
GASKET,CARBURETOR A
51543
5331-00-165-1944INTERCHANGEABLE
O-RING
AS3209-225
1680-00-279-3674INTERCHANGEABLE
COVER,SEAT BACK,PILOT
5154-3
5330-00-417-1729INTERCHANGEABLE
GASKET
51543A
5961-00-458-6866INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5-154-3
1650-00-486-1845INTERCHANGEABLE
CONTACT-STATIONARY
51543
4420-01-464-1739INTERCHANGEABLE
RESERVOIR ASSEMBLY,
51543

Frequently Asked Questions

What is NSN 5977-00-521-8272?

NSN 5977-00-521-8272 is a Brush,electrical Contact, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5977 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5977-00-521-8272?

NSN 5977-00-521-8272 has 4 cross-referenced part numbers: 51543 (Kleinschmidt Inc), SM-C-314890 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 51543A (Kleinschmidt Inc), S02461 (General Carbon Co).

What NSN replaces 5977-00-521-8272?

There are 7 known substitutes for 5977-00-521-8272: 2810-00-118-1704, 5331-00-165-1944, 1680-00-279-3674 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-C-314890?

Key specifications for SM-C-314890: Body Style: RECTANGULAR; Width: 0.182 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN; Shunt Insulation Provision and Quantity: 1 UNINSULATED; Contact Face Style: FLAT. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5977-00-521-8272 still in active supply?

NSN 5977-00-521-8272 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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