PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50566-1Terminal,lug

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5940-01-326-6680 · FSC 5940 · No Item Name Available
Verified by PartsTable
NSN 5940-01-326-6680 — this item is cataloged by the U.S. Government under National Stock Number 5940-01-326-6680. Primary manufacturer part number: 50566-1.
Features
  • Terminal,lug — FSC 5940
  • Basic Shape Style: CRIMP
  • Mounting Method Style: RING
  • Material Thickness: 0.016 INCHES IN
  • Material: COPPER ALLOY OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Terminal,lug, cataloged under National Stock Number 5940-01-326-6680, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5940-01-326-6680
Primary Part Number50566-1
Item NameTerminal,lug
FSC / FSG5940 / 59 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Basic Shape StyleCRIMP
Mounting Method StyleRING
Material Thickness0.016 INCHES IN
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5210-00-241-36135210-00-241-3613 INTERCHANGEABLE
Level and Plumb
General Services Administration Federal Supply Service
5330-01-023-9650 INTERCHANGEABLE
Gasket
5320-01-067-50285056-6 INTERCHANGEABLE
Collar
L3harris Technologies, Inc. Div Space and Airborne Systems
6515-01-139-77179257E INTERCHANGEABLE
Bur,ear Surgery
Microtek Medical, Inc.
5365-01-214-38225HP50N INTERCHANGEABLE
Plug,machine Thread
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
5305-01-239-7143 INTERCHANGEABLE
Screw,machine
6130-01-397-191750566 INTERCHANGEABLE
Power Supply Subassembly
Haynes International, Inc.
5920-01-511-9215505661 INTERCHANGEABLE
Fuse,cartridge
Edgeone Llc Dba Ore Offshore Div Ore Offshore
9525-01-664-746750566 INTERCHANGEABLE
Wire,nonelectrical
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
50566 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
50566-1 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
5210-00-241-3613INTERCHANGEABLE
LEVEL AND PLUMB
5210-00-241-3613
5330-01-023-9650INTERCHANGEABLE
GASKET
5320-01-067-5028INTERCHANGEABLE
COLLAR
5056-6
6515-01-139-7717INTERCHANGEABLE
BUR,EAR SURGERY
9257E
5365-01-214-3822INTERCHANGEABLE
PLUG,MACHINE THREAD
5HP50N
5305-01-239-7143INTERCHANGEABLE
SCREW,MACHINE
6130-01-397-1917INTERCHANGEABLE
POWER SUPPLY SUBASSEMBLY
50566
5920-01-511-9215INTERCHANGEABLE
FUSE,CARTRIDGE
505661
9525-01-664-7467INTERCHANGEABLE
WIRE,NONELECTRICAL
50566

Frequently Asked Questions

What is NSN 5940-01-326-6680?

NSN 5940-01-326-6680 is a Terminal,lug, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5940 (No Item Name Available). Status: active.

What are the part numbers for NSN 5940-01-326-6680?

NSN 5940-01-326-6680 has 2 cross-referenced part numbers: 50566 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), 50566-1 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 5940-01-326-6680?

There are 9 known substitutes for 5940-01-326-6680: 5210-00-241-3613, 5330-01-023-9650, 5320-01-067-5028 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50566-1?

Key specifications for 50566-1: Overall Length: 0.382 INCHES IN; Overall Width: 0.260 INCHES IN; Basic Shape Style: CRIMP; Mounting Method Style: RING. 6 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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