PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-81S3E0120Connector Body,receptacle,electr

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect · NSN 5935-00-987-3546 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-987-3546 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-987-3546. Primary manufacturer part number: 40-81S3E0120.
Features
  • Connector Body,receptacle,electr — FSC 5935
  • Shell Surface Treatment: CADMIUM
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Threaded Device Type: COUPLING FACILITY
  • Shell Type: SOLID
  • Body Style: STRAIGHT SHAPE
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 2.875 INCHES NOMINAL IN
  • Contact Position Arrangement Style: 81 ALL MATING ENDS
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector Body,receptacle,electr, cataloged under National Stock Number 5935-00-987-3546, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect. Government technical data includes 18 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-987-3546
Primary Part Number40-81S3E0120
Item NameConnector Body,receptacle,electr
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
StatusACTIVE
Shell Surface TreatmentCADMIUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Threaded Device TypeCOUPLING FACILITY
Shell TypeSOLID
Body StyleSTRAIGHT SHAPE
Distance Between Centerlines of Mounting Facilities Parallel to Body Width2.875 INCHES NOMINAL IN
Contact Position Arrangement Style81 ALL MATING ENDS
Mating End Quantity2
Connector Locking MethodSCREW
Insert MaterialPLASTIC POLYESTER ALL MATING ENDS
Insert Material Document and ClassificationMIL-M-14,TYPE MAI-60 MIL SPEC SINGLE MATERIAL RESPONSE ALL MATING ENDS
Polarization MethodMATING END
Center to Center Distance Between Mounting Facilities Parallel to Height1.000 INCHES NOMINAL IN
Shell Material Document and ClassificationQQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE
Nominal Thread Size0.164 INCHES IN
Shell MaterialALUMINUM ALLOY
Thread DirectionRIGHT-HAND
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5342-00-042-8867 INTERCHANGEABLE
Latch,teletypewriter
4310-00-295-768146214 INTERCHANGEABLE
Filter Element,intake Air Cleane
Wix Corp
2815-00-716-4665 INTERCHANGEABLE
Ring Set,piston
5360-01-284-934540187 INTERCHANGEABLE
Spring,helical,compression
Moog Military Aircraft Llc
5310-01-600-409340187 INTERCHANGEABLE
Nut,self-Locking,hexagon
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
40-81S3E0120 PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
40-187 Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
Related Parts
5342-00-042-8867INTERCHANGEABLE
LATCH,TELETYPEWRITER
4310-00-295-7681INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
46214
2815-00-716-4665INTERCHANGEABLE
RING SET,PISTON
5360-01-284-9345INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40187
5310-01-600-4093INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
40187

Frequently Asked Questions

What is NSN 5935-00-987-3546?

NSN 5935-00-987-3546 is a Connector Body,receptacle,electr, manufactured by Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-987-3546?

NSN 5935-00-987-3546 has 2 cross-referenced part numbers: 40-81S3E0120 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect), 40-187 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect).

What NSN replaces 5935-00-987-3546?

There are 5 known substitutes for 5935-00-987-3546: 5342-00-042-8867, 4310-00-295-7681, 2815-00-716-4665 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-81S3E0120?

Key specifications for 40-81S3E0120: Shell Surface Treatment: CADMIUM; Overall Height: 3.938 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Threaded Device Type: COUPLING FACILITY. 20 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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