PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

85G78Contact Assembly,electrical

Aimtron Systems, Llc · NSN 5999-00-387-3143 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-387-3143 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-387-3143. Primary manufacturer part number: 85G78.
Features
  • Contact Assembly,electrical — FSC 5999
  • Mounting Configuration: TWO 0.128 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN
  • Structural Design: PILE-UP
  • FSC Application Data: RELAY
  • Contact Form Arrangement: 1B LOCATION NOT OTHERWISE SPECIFIED
  • Terminal Type: SOLDER LUG
  • Terminal Quantity: 2
  • Terminal Type: SOLDER LUG
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-00-387-3143, 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 Aimtron Systems, Llc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-387-3143
Primary Part Number85G78
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAimtron Systems, Llc
StatusACTIVE
Mounting ConfigurationTWO 0.128 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN
Structural DesignPILE-UP
FSC Application DataRELAY
Contact Form Arrangement1B LOCATION NOT OTHERWISE SPECIFIED
Terminal TypeSOLDER LUG
Terminal Quantity2
Terminal TypeSOLDER LUG
Mounting ConfigurationTWO 0.128 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN
Structural DesignPILE-UP
FSC Application DataRELAY
Contact Form Arrangement1B LOCATION NOT OTHERWISE SPECIFIED
Terminal Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeX
Verified Substitutes 9
5310-00-021-976024569D INTERCHANGEABLE
Nut,plain,hexagon
Kalmar AC Inc
3120-00-051-9979LCSSVV4A INTERCHANGEABLE
Bearing,plain,self-Aligning
Roller Bearing Company of America, Inc.
3455-00-189-9157 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
5961-00-262-032824569 INTERCHANGEABLE
Semiconductor Device,diode
Telephonics Corp/prd Instruments
5306-00-737-586332739 INTERCHANGEABLE
Bolt,ribbed Neck
Hayes Wheels Intl Inc Akron Opns
5305-00-958-5461MS35190-241 INTERCHANGEABLE
Screw,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3040-01-188-324224569 INTERCHANGEABLE
Shoe,cam Roller
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3040-01-386-831524569 INTERCHANGEABLE
Adapter,spline
Paccar Winch Inc Dba Paccar Winch Division
1650-01-414-384324569 INTERCHANGEABLE
Shaft and Bearing a
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
85G78 Aimtron Systems, Llc (USA)
565497 Stewart-Warner Corporation (USA)
CXA1040 General-Electro Mechanical Corp (USA)
508-0983-10 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
24569 Naval Ship Systems Command (USA)
CXA1040 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
Related Parts
5310-00-021-9760INTERCHANGEABLE
NUT,PLAIN,HEXAGON
24569D
3120-00-051-9979INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
LCSSVV4A
3455-00-189-9157INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
5961-00-262-0328INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
24569
5306-00-737-5863INTERCHANGEABLE
BOLT,RIBBED NECK
32739
5305-00-958-5461INTERCHANGEABLE
SCREW,MACHINE
MS35190-241
3040-01-188-3242INTERCHANGEABLE
SHOE,CAM ROLLER
24569
3040-01-386-8315INTERCHANGEABLE
ADAPTER,SPLINE
24569
1650-01-414-3843INTERCHANGEABLE
SHAFT AND BEARING A
24569

Frequently Asked Questions

What is NSN 5999-00-387-3143?

NSN 5999-00-387-3143 is a Contact Assembly,electrical, manufactured by Aimtron Systems, Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-387-3143?

NSN 5999-00-387-3143 has 6 cross-referenced part numbers: 85G78 (Aimtron Systems, Llc), 565497 (Stewart-Warner Corporation), CXA1040 (General-Electro Mechanical Corp), 508-0983-10 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 24569 (Naval Ship Systems Command) and 1 more.

What NSN replaces 5999-00-387-3143?

There are 9 known substitutes for 5999-00-387-3143: 5310-00-021-9760, 3120-00-051-9979, 3455-00-189-9157 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 85G78?

Key specifications for 85G78: Mounting Configuration: TWO 0.128 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN; Structural Design: PILE-UP; FSC Application Data: RELAY; Contact Form Arrangement: 1B LOCATION NOT OTHERWISE SPECIFIED. 18 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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