PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-488Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-097-1043 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-097-1043 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-097-1043. Primary manufacturer part number: 21-488.
Features
  • Contact,electrical — FSC 5999
  • Precious Material and Location: EXTERNAL SURFACE SILVER
  • Precious Material: SILVER
  • Style Designator: FLAT LEAF CONTACT W/ ROUND FIXED POINT
  • Material: COPPER CONTACT
  • Mounting Facility Quantity: 2
  • Mounting Method: UNTHREADED HOLE(S)
  • Unthreaded Mounting Hole Diameter: 0.250 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-097-1043, 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 Eaton Corp Opns & Technical Center. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-097-1043
Primary Part Number21-488
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Precious Material and LocationEXTERNAL SURFACE SILVER
Precious MaterialSILVER
Style DesignatorFLAT LEAF CONTACT W/ ROUND FIXED POINT
MaterialCOPPER CONTACT
Mounting Facility Quantity2
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.250 INCHES NOMINAL IN
Surface TreatmentSILVER CONTACT
Precious Material and Weight0.005 SILVER GRAINS, TROY
Surface TreatmentSILVER BODY
Point Diameter0.125 INCHES NOMINAL IN
MaterialCOPPER BODY
Precious Material and LocationEXTERNAL SURFACE SILVER
Precious MaterialSILVER
Style DesignatorFLAT LEAF CONTACT W/ ROUND FIXED POINT
MaterialCOPPER CONTACT
Mounting Facility Quantity2
Mounting MethodUNTHREADED HOLE(S)
Unthreaded Mounting Hole Diameter0.250 INCHES NOMINAL IN
Surface TreatmentSILVER CONTACT
Precious Material and Weight0.005 SILVER GRAINS, TROY
Surface TreatmentSILVER BODY
Point Diameter0.125 INCHES NOMINAL IN
MaterialCOPPER BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 1
4720-01-363-259921488 INTERCHANGEABLE
Hose,preformed
Gates Corporation
Cross-Reference Index
Part NumberManufacturer
21-488 PRIMARY Eaton Corp Opns & Technical Center (USA)
Related Parts
4720-01-363-2599INTERCHANGEABLE
HOSE,PREFORMED
21488

Frequently Asked Questions

What is NSN 5999-00-097-1043?

NSN 5999-00-097-1043 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-097-1043?

NSN 5999-00-097-1043 has 1 cross-referenced part number: 21-488 (Eaton Corp Opns & Technical Center).

What NSN replaces 5999-00-097-1043?

There is 1 known substitute for 5999-00-097-1043: 4720-01-363-2599. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-488?

Key specifications for 21-488: Precious Material and Location: EXTERNAL SURFACE SILVER; Overall Length: 2.109 INCHES NOMINAL IN; Precious Material: SILVER; Style Designator: FLAT LEAF CONTACT W/ ROUND FIXED POINT. 28 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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