PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C21S1616AOContact,electrical

Aptiv Services 3 (us), Llc · NSN 5999-01-048-7632 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-048-7632 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-048-7632. Primary manufacturer part number: C21S1616AO.
Features
  • Contact,electrical — FSC 5999
  • Mounting Method: FORCE FIT
  • Pin Accommodation Diameter: 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
  • Cable Entrance Diameter: 0.051 INCHES NOMINAL IN
  • Overall Diameter: 0.119 INCHES MAXIMUM IN
  • Precious Material: GOLD
  • Surface Treatment: GOLD AND COPPER CONTACT
  • Precious Material and Location: OUTER SURFACES GOLD
Applications
  • Applications requiring Copper Alloy 172 or Copper Alloy 173 Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-048-7632, 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 Aptiv Services 3 (us), Llc. Government technical data includes 28 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-01-048-7632
Primary Part NumberC21S1616AO
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAptiv Services 3 (us), Llc
StatusACTIVE
Mounting MethodFORCE FIT
Pin Accommodation Diameter0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Cable Entrance Diameter0.051 INCHES NOMINAL IN
Overall Diameter0.119 INCHES MAXIMUM IN
Precious MaterialGOLD
Surface TreatmentGOLD AND COPPER CONTACT
Precious Material and LocationOUTER SURFACES GOLD
Style DesignatorSOCKET CONTACT
Terminal Type and Quantity1 CRIMP END OPPOSITE CONTACT
Material Document and ClassificationQQ-C-530 FED SPEC ALL MATERIAL RESPONSES CONTACT
Surface TreatmentGOLD AND COPPER BODY
MaterialCOPPER ALLOY 172 OR COPPER ALLOY 173 BODY
MaterialCOPPER ALLOY 172 OR COPPER ALLOY 173 CONTACT
Material Document and ClassificationQQ-C-530 FED SPEC ALL MATERIAL RESPONSES BODY
Mounting MethodFORCE FIT
Pin Accommodation Diameter0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN
Cable Entrance Diameter0.051 INCHES NOMINAL IN
Overall Diameter0.119 INCHES MAXIMUM IN
Precious MaterialGOLD
Surface TreatmentGOLD AND COPPER CONTACT
Precious Material and LocationOUTER SURFACES GOLD
Style DesignatorSOCKET CONTACT
Terminal Type and Quantity1 CRIMP END OPPOSITE CONTACT
Material Document and ClassificationQQ-C-530 FED SPEC ALL MATERIAL RESPONSES CONTACT
Surface TreatmentGOLD AND COPPER BODY
MaterialCOPPER ALLOY 172 OR COPPER ALLOY 173 BODY
MaterialCOPPER ALLOY 172 OR COPPER ALLOY 173 CONTACT
Material Document and ClassificationQQ-C-530 FED SPEC ALL MATERIAL RESPONSES BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5985-01-012-40549113 INTERCHANGEABLE
Attenuator,fixed
Spectrum Control Inc Div Weinschel
Cross-Reference Index
Part NumberManufacturer
C21S1616AO PRIMARY Aptiv Services 3 (us), Llc (USA)
B89788 Mbda Uk Ltd (GBR)
Related Parts
5985-01-012-4054INTERCHANGEABLE
ATTENUATOR,FIXED
9113

Frequently Asked Questions

What is NSN 5999-01-048-7632?

NSN 5999-01-048-7632 is a Contact,electrical, manufactured by Aptiv Services 3 (us), Llc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-048-7632?

NSN 5999-01-048-7632 has 2 cross-referenced part numbers: C21S1616AO (Aptiv Services 3 (us), Llc), B89788 (Mbda Uk Ltd).

What NSN replaces 5999-01-048-7632?

There is 1 known substitute for 5999-01-048-7632: 5985-01-012-4054. Verify interchangeability with system specifications before substitution.

What are the specifications of C21S1616AO?

Key specifications for C21S1616AO: Mounting Method: FORCE FIT; Pin Accommodation Diameter: 0.061 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Overall Length: 0.975 INCHES MAXIMUM IN; Cable Entrance Diameter: 0.051 INCHES NOMINAL IN. 30 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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