PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52122Contact,electrical

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5999-00-321-0020 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-321-0020 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-321-0020. Primary manufacturer part number: 52122.
Features
  • Contact,electrical — FSC 5999
  • Style Designator: FLAT LEAF CONTACT W/O POINT
  • Material: STEEL CONTACT
  • Material: STEEL BODY
  • Terminal Type and Quantity: 1 EYELET END OPPOSITE CONTACT
  • Mounting Facility Quantity: 1
  • Mounting Method: UNTHREADED HOLE(S)
  • Unthreaded Mounting Hole Diameter: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-321-0020, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-321-0020
Primary Part Number52122
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Style DesignatorFLAT LEAF CONTACT W/O POINT
MaterialSTEEL CONTACT
MaterialSTEEL BODY
Terminal Type and Quantity1 EYELET END OPPOSITE CONTACT
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Style DesignatorFLAT LEAF CONTACT W/O POINT
MaterialSTEEL CONTACT
MaterialSTEEL BODY
Terminal Type and Quantity1 EYELET END OPPOSITE CONTACT
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.0200 lbs
Cube0.0052 cu ft
Verified Substitutes 3
9540-00-145-4543 INTERCHANGEABLE
Angle,structural
5815-00-309-3878 INTERCHANGEABLE
Roller,paper
5985-01-448-20741611AS427-2 INTERCHANGEABLE
Antenna
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
52122 Spencer Industries Inc (USA)
52122 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
9540-00-145-4543INTERCHANGEABLE
ANGLE,STRUCTURAL
5815-00-309-3878INTERCHANGEABLE
ROLLER,PAPER
5985-01-448-2074INTERCHANGEABLE
ANTENNA
1611AS427-2

Frequently Asked Questions

What is NSN 5999-00-321-0020?

NSN 5999-00-321-0020 is a Contact,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 5999-00-321-0020?

NSN 5999-00-321-0020 has 2 cross-referenced part numbers: 52122 (Spencer Industries Inc), 52122 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5999-00-321-0020?

There are 3 known substitutes for 5999-00-321-0020: 9540-00-145-4543, 5815-00-309-3878, 5985-01-448-2074. Verify interchangeability with system specifications before substitution.

What are the specifications of 52122?

Key specifications for 52122: Overall Length: 2.406 INCHES NOMINAL IN; Style Designator: FLAT LEAF CONTACT W/O POINT; Material: STEEL CONTACT; Material: STEEL BODY. 20 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com