PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GS45-300Contact Assembly,electrical

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5999-00-204-9919 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-204-9919 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-204-9919. Primary manufacturer part number: GS45-300.
Features
  • Contact Assembly,electrical — FSC 5999
  • Contact Identifying Number Assigned by Government Agency: GS45-300
  • Precious Material: SILVER
  • Contact Quantity: 2
  • Structural Design: NONSWITCHING
  • Precious Material and Weight: 0.005 SILVER GRAINS, TROY
  • Contact Item Name Assigned by Government Agency: CONTACT ASSY
  • Precious Material and Location: BODY AND CONTACT SURFACES SILVER
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-00-204-9919, 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 Div Space & Airborne Systems. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-204-9919
Primary Part NumberGS45-300
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Contact Identifying Number Assigned by Government AgencyGS45-300
Precious MaterialSILVER
Contact Quantity2
Structural DesignNONSWITCHING
Precious Material and Weight0.005 SILVER GRAINS, TROY
Contact Item Name Assigned by Government AgencyCONTACT ASSY
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Government Agency Controlling ContactUSAF AND USMC AND USN
Mounting ConfigurationTW0 3/16 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN
Contact Identifying Number Assigned by Government AgencyGS45-300
Precious MaterialSILVER
Contact Quantity2
Structural DesignNONSWITCHING
Precious Material and Weight0.005 SILVER GRAINS, TROY
Contact Item Name Assigned by Government AgencyCONTACT ASSY
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Government Agency Controlling ContactUSAF AND USMC AND USN
Mounting ConfigurationTW0 3/16 IN. DIA MTG HOLES ON 3/8 IN. CENTERS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJZ
Weight0.1300 lbs
Cube0.0006 cu ft
Verified Substitutes 8
5330-00-397-9656 INTERCHANGEABLE
Gasket
5950-00-601-629672-2204 INTERCHANGEABLE
Transformer,current
Department of Defense Project Manager-Mobile Electric Power
5985-01-077-571541096 INTERCHANGEABLE
Switch,waveguide
Waveline Inc
5330-01-120-687941096 INTERCHANGEABLE
Retainer,packing
Parker Hannifin Corporation Div Hydraulic Systems Division
2990-01-165-49502506743C91 INTERCHANGEABLE
Pipe,exhaust
Navistar Intl Corp Truck Br Ohio Plant
5330-01-329-406841096 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Allied Systems Company Dba Allied Systems Co
4720-01-364-342521207 INTERCHANGEABLE
Hose,preformed
Gates Corporation
5940-01-398-60664109.6 INTERCHANGEABLE
Terminal Board
Weidmueller Terminations Inc
Cross-Reference Index
Part NumberManufacturer
GS45-300 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
41096 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
012-364021-00 Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co (USA)
GS45-300 J L M Electronics Inc Dba Pack Rite Company (USA)
X01591 Alek Industries Inc (USA)
GS45-300 Alek Industries Inc (USA)
Related Parts
5330-00-397-9656INTERCHANGEABLE
GASKET
5950-00-601-6296INTERCHANGEABLE
TRANSFORMER,CURRENT
72-2204
5985-01-077-5715INTERCHANGEABLE
SWITCH,WAVEGUIDE
41096
5330-01-120-6879INTERCHANGEABLE
RETAINER,PACKING
41096
2990-01-165-4950INTERCHANGEABLE
PIPE,EXHAUST
2506743C91
5330-01-329-4068INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
41096
4720-01-364-3425INTERCHANGEABLE
HOSE,PREFORMED
21207
5940-01-398-6066INTERCHANGEABLE
TERMINAL BOARD
4109.6

Frequently Asked Questions

What is NSN 5999-00-204-9919?

NSN 5999-00-204-9919 is a Contact Assembly,electrical, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-204-9919?

NSN 5999-00-204-9919 has 6 cross-referenced part numbers: GS45-300 (L3harris Technologies, Inc Div Space & Airborne Systems), 41096 (L3harris Technologies, Inc Div Space & Airborne Systems), 012-364021-00 (Guardian Electric Manufacturing Co Div Guardian Electric Mfg Co), GS45-300 (J L M Electronics Inc Dba Pack Rite Company), X01591 (Alek Industries Inc) and 1 more.

What NSN replaces 5999-00-204-9919?

There are 8 known substitutes for 5999-00-204-9919: 5330-00-397-9656, 5950-00-601-6296, 5985-01-077-5715 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GS45-300?

Key specifications for GS45-300: Contact Identifying Number Assigned by Government Agency: GS45-300; Precious Material: SILVER; Contact Quantity: 2; Structural Design: NONSWITCHING. 24 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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