PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B2144370ISSUEAContact Assembly,electrical

L3harris Technologies, Inc. · NSN 5999-00-502-0061 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-502-0061 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-502-0061. Primary manufacturer part number: B2144370ISSUEA.
Features
  • Contact Assembly,electrical — FSC 5999
  • Contact Form Arrangement: 1C LOCATION NOT OTHERWISE SPECIFIED
  • Structural Design: PILE-UP
  • Terminal Quantity: 3
  • Terminal Type: SOLDER LUG
  • FSC Application Data: CONTACT ASSEMBLY RELAY
  • Mounting Configuration: TWO 0.128 IN. DIA MTG HOLES SPACED 0.500 IN. C TO C IN
  • Contact Form Arrangement: 1C LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-00-502-0061, 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 L3harris Technologies, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-502-0061
Primary Part NumberB2144370ISSUEA
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc.
StatusACTIVE
Contact Form Arrangement1C LOCATION NOT OTHERWISE SPECIFIED
Structural DesignPILE-UP
Terminal Quantity3
Terminal TypeSOLDER LUG
FSC Application DataCONTACT ASSEMBLY RELAY
Mounting ConfigurationTWO 0.128 IN. DIA MTG HOLES SPACED 0.500 IN. C TO C IN
Contact Form Arrangement1C LOCATION NOT OTHERWISE SPECIFIED
Structural DesignPILE-UP
Terminal Quantity3
Terminal TypeSOLDER LUG
FSC Application DataCONTACT ASSEMBLY RELAY
Mounting ConfigurationTWO 0.128 IN. DIA MTG HOLES SPACED 0.500 IN. C TO C IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-725-4322 (B146)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeY
Weight0.0900 lbs
Cube0.0035 cu ft
Verified Substitutes 6
6625-00-725-4322B146 SUCCESSOR
Test Set,computer
Lockheed Martin Corp
5940-00-243-0409AAA16-1 INTERCHANGEABLE
Terminal,lug
Mac Products, Inc
3110-00-555-400012008249 INTERCHANGEABLE
Bearing,roller,needle
Jtekt Bearings North America Llc Div Kbna - Ord 1
5950-00-769-5106B146 INTERCHANGEABLE
Transformer,potential
Kurz & Root Generator Company, Llc
5985-00-869-9143 INTERCHANGEABLE
Waveguide Assembly
5120-01-335-0917FS141 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
B2144370ISSUEA PRIMARY L3harris Technologies, Inc. (USA)
2319AY1C Shiloh Industries Inc (USA)
B2144370ISSUEA Itt Industries Inc Itt Aerospace Communications Div East (USA)
B146 Burke Products Inc (USA)
Related Parts
SUCCESSOR 6625-00-725-4322 Test Set,computer · B146
5940-00-243-0409INTERCHANGEABLE
TERMINAL,LUG
AAA16-1
3110-00-555-4000INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
12008249
5950-00-769-5106INTERCHANGEABLE
TRANSFORMER,POTENTIAL
B146
5985-00-869-9143INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
5120-01-335-0917INTERCHANGEABLE
SOCKET,SOCKET WRENCH
FS141

Frequently Asked Questions

What is NSN 5999-00-502-0061?

NSN 5999-00-502-0061 is a Contact Assembly,electrical, manufactured by L3harris Technologies, Inc., classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-502-0061?

NSN 5999-00-502-0061 has 4 cross-referenced part numbers: B2144370ISSUEA (L3harris Technologies, Inc.), 2319AY1C (Shiloh Industries Inc), B2144370ISSUEA (Itt Industries Inc Itt Aerospace Communications Div East), B146 (Burke Products Inc).

What NSN replaces 5999-00-502-0061?

There are 6 known substitutes for 5999-00-502-0061: 6625-00-725-4322, 5940-00-243-0409, 3110-00-555-4000 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B2144370ISSUEA?

Key specifications for B2144370ISSUEA: Overall Length: 2.539 INCHES NOMINAL IN; Overall Width: 0.875 INCHES NOMINAL IN; Contact Form Arrangement: 1C LOCATION NOT OTHERWISE SPECIFIED; Structural Design: PILE-UP. 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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