PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-33121-557Contact,electrical

Amphenol Corp Div Amphenol Aerospace Operations · NSN 5999-01-246-6996 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-246-6996 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-246-6996. Primary manufacturer part number: 21-33121-557.
Features
  • Contact,electrical — FSC 5999
  • Style Designator: SOCKET CRIMP CONTACT
  • Overall Diameter: 0.182 INCHES MAXIMUM IN
  • Style Designator: SOCKET CRIMP CONTACT
  • Overall Diameter: 0.182 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Amphenol Corp Div Amphenol Aerospace Operations
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact,electrical, cataloged under National Stock Number 5999-01-246-6996, 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 Amphenol Corp Div Amphenol Aerospace Operations. Government technical data includes 4 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-246-6996
Primary Part Number21-33121-557
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerAmphenol Corp Div Amphenol Aerospace Operations
StatusACTIVE
Style DesignatorSOCKET CRIMP CONTACT
Overall Diameter0.182 INCHES MAXIMUM IN
Style DesignatorSOCKET CRIMP CONTACT
Overall Diameter0.182 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Weight0.0265 lbs
Cube0.0226 cu ft
Verified Substitutes 1
5360-01-723-1636105073-0001 INTERCHANGEABLE
Spring,helical,compression
Spring Works Utah, Inc Dba Spring Works Utah
Cross-Reference Index
Part NumberManufacturer
105-073-0001 Northrop Grumman Systems Corporation (USA)
21-33121-557 PRIMARY Amphenol Corp Div Amphenol Aerospace Operations (USA)
Related Parts
5360-01-723-1636INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
105073-0001

Frequently Asked Questions

What is NSN 5999-01-246-6996?

NSN 5999-01-246-6996 is a Contact,electrical, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-246-6996?

NSN 5999-01-246-6996 has 2 cross-referenced part numbers: 105-073-0001 (Northrop Grumman Systems Corporation), 21-33121-557 (Amphenol Corp Div Amphenol Aerospace Operations).

What NSN replaces 5999-01-246-6996?

There is 1 known substitute for 5999-01-246-6996: 5360-01-723-1636. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-33121-557?

Key specifications for 21-33121-557: Overall Length: 0.554 INCHES NOMINAL IN; Style Designator: SOCKET CRIMP CONTACT; Overall Diameter: 0.182 INCHES MAXIMUM IN; Overall Length: 0.554 INCHES NOMINAL IN. 6 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