PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SC-B-70549Contact Assembly,electrical

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5999-00-543-8700 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-543-8700 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-543-8700. Primary manufacturer part number: SC-B-70549.
Features
  • Contact Assembly,electrical — FSC 5999
  • FSC Application Data: RELAY,ARMATURE
  • Mounting Configuration: TWO 0.147 IN. DIA MTG HOLES SPACED 0.875 IN. C TO C IN
  • Contact Form Arrangement: 2B LOCATION NOT OTHERWISE SPECIFIED
  • Structural Design: PILE-UP
  • Terminal Type: SOLDER LUG
  • Terminal Quantity: 4
  • FSC Application Data: RELAY,ARMATURE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-00-543-8700, is classified within Federal Supply Class 5999 (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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-543-8700
Primary Part NumberSC-B-70549
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
FSC Application DataRELAY,ARMATURE
Mounting ConfigurationTWO 0.147 IN. DIA MTG HOLES SPACED 0.875 IN. C TO C IN
Contact Form Arrangement2B LOCATION NOT OTHERWISE SPECIFIED
Structural DesignPILE-UP
Terminal TypeSOLDER LUG
Terminal Quantity4
FSC Application DataRELAY,ARMATURE
Mounting ConfigurationTWO 0.147 IN. DIA MTG HOLES SPACED 0.875 IN. C TO C IN
Contact Form Arrangement2B LOCATION NOT OTHERWISE SPECIFIED
Structural DesignPILE-UP
Terminal TypeSOLDER LUG
Terminal Quantity4
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor7025-01-459-8717 (10333)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Weight0.0400 lbs
Cube0.0090 cu ft
Verified Substitutes 11
7025-01-459-871710333 SUCCESSOR
Transport,magnetic Tape
Iomega Corporation
3110-00-109-1155 INTERCHANGEABLE
Bearing,ball,annular
5310-00-225-6408 INTERCHANGEABLE
Nut,self-Locking,hexagon
3455-00-293-051408300 INTERCHANGEABLE
Cutter,milling,metal Slitting
Niagara Cutter Inc
5940-00-370-536515052 INTERCHANGEABLE
Terminal,feedthru
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5305-00-579-5448SMD331511-19 INTERCHANGEABLE
Screw,machine
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4920-00-626-4316ST10333 INTERCHANGEABLE
Selector Valve Assy
Elbitamerica, Inc.
6220-00-790-7780 INTERCHANGEABLE
Spotlight
6505-01-151-614910333 INTERCHANGEABLE
Amoxicillin Capsules
Goldline Laboratories, Inc. Dba Goldline Laboratories
5950-01-194-157010/333 INTERCHANGEABLE
Coil,radio Frequency
Gowanda Holdings, Llc Div Gowanda Electronics Corp.
Cross-Reference Index
Part NumberManufacturer
BP5142 Burke Products Inc (USA)
50969A Kleinschmidt Inc (USA)
375LX Burke Products Inc (USA)
10333 Freund Precision Inc (USA)
SC-B-70549 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
SUCCESSOR 7025-01-459-8717 Transport,magnetic Tape · 10333
3110-00-109-1155INTERCHANGEABLE
BEARING,BALL,ANNULAR
5310-00-225-6408INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
3455-00-293-0514INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
08300
5940-00-370-5365INTERCHANGEABLE
TERMINAL,FEEDTHRU
15052
5305-00-579-5448INTERCHANGEABLE
SCREW,MACHINE
SMD331511-19
4920-00-626-4316INTERCHANGEABLE
SELECTOR VALVE ASSY
ST10333
6220-00-790-7780INTERCHANGEABLE
SPOTLIGHT
6505-01-151-6149INTERCHANGEABLE
AMOXICILLIN CAPSULES
10333
5950-01-194-1570INTERCHANGEABLE
COIL,RADIO FREQUENCY
10/333
5310-01-502-7626INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
10-333

Frequently Asked Questions

What is NSN 5999-00-543-8700?

NSN 5999-00-543-8700 is a Contact Assembly,electrical, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-00-543-8700?

NSN 5999-00-543-8700 has 5 cross-referenced part numbers: BP5142 (Burke Products Inc), 50969A (Kleinschmidt Inc), 375LX (Burke Products Inc), 10333 (Freund Precision Inc), SC-B-70549 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5999-00-543-8700?

There are 11 known substitutes for 5999-00-543-8700: 7025-01-459-8717, 3110-00-109-1155, 5310-00-225-6408 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SC-B-70549?

Key specifications for SC-B-70549: Overall Length: 1.969 INCHES NOMINAL IN; Overall Width: 1.250 INCHES NOMINAL IN; Special Features: MOISTURE AND FUNGUS PROOF; FSC Application Data: RELAY,ARMATURE. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-00-543-8700 still in active supply?

NSN 5999-00-543-8700 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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