PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-379821Terminal,quick Disconnect

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5940-00-177-6663 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-00-177-6663 — this item is cataloged by the U.S. Government under National Stock Number 5940-00-177-6663. Primary manufacturer part number: SM-B-379821.
Features
  • Terminal,quick Disconnect — FSC 5940
  • Maximum Conductor Size Accommodated: 18 AWG
  • Surface Treatment: TIN OVERALL SINGLE LAYER
  • Material Thickness: 0.010 INCHES IN
  • Major Plug Diameter Accommodated: 0.080 INCHES IN
  • Quick Disconnect Style: PLUG COUPLER
  • Basic Shape Style: COUPLER
  • Electrical Insulation Feature: UNINSULATED
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Terminal,quick Disconnect, cataloged under National Stock Number 5940-00-177-6663, is classified within Federal Supply Class 5940 (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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5940-00-177-6663
Primary Part NumberSM-B-379821
Item NameTerminal,quick Disconnect
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Maximum Conductor Size Accommodated18 AWG
Surface TreatmentTIN OVERALL SINGLE LAYER
Material Thickness0.010 INCHES IN
Major Plug Diameter Accommodated0.080 INCHES IN
Quick Disconnect StylePLUG COUPLER
Basic Shape StyleCOUPLER
Electrical Insulation FeatureUNINSULATED
Conductor Accommodation TypeCLAMPING TANG EARS SINGLE END
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-012-0214 INTERCHANGEABLE
Washer,lock
4130-00-202-8465SMD205376 INTERCHANGEABLE
Filter Element,air Conditioning
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4730-00-339-24002A7728 INTERCHANGEABLE
Strainer Element,sediment
Napco International Llc Dba Napco International Inc
5310-00-407-956612759-00080 INTERCHANGEABLE
Washer,lock
Fastenal Company Dba Fastenal Co
5340-01-018-1238 INTERCHANGEABLE
Shield,expansion
5310-01-244-8944 INTERCHANGEABLE
Washer,lock
5340-01-304-0075929091-5 INTERCHANGEABLE
Boot,dust and Moisture Seal
Valley Seal Company Dba Valley Seal Co
5360-01-388-7967 INTERCHANGEABLE
Spring Assortment
5995-01-447-1139 INTERCHANGEABLE
Cable Assembly,radio Frequency
Cross-Reference Index
Part NumberManufacturer
SM-B-379821 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
12021-4 Te Connectivity Corporation Dba Microdot Products (USA)
103-0012-019 Te Connectivity Corporation Dba Microdot Products (USA)
Related Parts
5310-00-012-0214INTERCHANGEABLE
WASHER,LOCK
4130-00-202-8465INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
SMD205376
4730-00-339-2400INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
2A7728
5310-00-407-9566INTERCHANGEABLE
WASHER,LOCK
12759-00080
5340-01-018-1238INTERCHANGEABLE
SHIELD,EXPANSION
5310-01-244-8944INTERCHANGEABLE
WASHER,LOCK
5340-01-304-0075INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
929091-5
5360-01-388-7967INTERCHANGEABLE
SPRING ASSORTMENT
5995-01-447-1139INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY

Frequently Asked Questions

What is NSN 5940-00-177-6663?

NSN 5940-00-177-6663 is a Terminal,quick Disconnect, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5940 (No Item Name Available). Status: active.

What are the part numbers for NSN 5940-00-177-6663?

NSN 5940-00-177-6663 has 3 cross-referenced part numbers: SM-B-379821 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 12021-4 (Te Connectivity Corporation Dba Microdot Products), 103-0012-019 (Te Connectivity Corporation Dba Microdot Products).

What NSN replaces 5940-00-177-6663?

There are 9 known substitutes for 5940-00-177-6663: 5310-00-012-0214, 4130-00-202-8465, 4730-00-339-2400 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-379821?

Key specifications for SM-B-379821: Maximum Conductor Size Accommodated: 18 AWG; Overall Length: 0.531 INCHES IN; Surface Treatment: TIN OVERALL SINGLE LAYER; Material Thickness: 0.010 INCHES IN. 10 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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