PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27491-20Contact,electrical

Iss International Spares Services Gmbh · NSN 5999-00-180-4274 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-180-4274 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-180-4274. Primary manufacturer part number: MS27491-20.
Features
  • Contact,electrical — FSC 5999
  • Pin Accommodation Length: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
  • Material: COPPER ALLOY CONTACT
  • Overall Diameter: 0.091 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
  • Precious Material: GOLD AND SILVER
  • Precious Material and Weight: 0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
  • Mounting Method: FORCE FIT
  • Pin Accommodation Diameter: 0.046 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
Applications
  • Applications requiring Copper Alloy Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-180-4274, 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 Iss International Spares Services Gmbh. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5999-00-180-4274
Primary Part NumberMS27491-20
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerIss International Spares Services Gmbh
StatusACTIVE
Pin Accommodation Length0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
MaterialCOPPER ALLOY CONTACT
Overall Diameter0.091 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
Precious MaterialGOLD AND SILVER
Precious Material and Weight0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
Mounting MethodFORCE FIT
Pin Accommodation Diameter0.046 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
Style DesignatorSOCKET CONTACT
Precious Material and LocationBODY AND CONTACT SURFACES GOLD AND BODY AND CONTACT SURFACES SILVER
Surface TreatmentGOLD AND SILVER BODY
Cable Entrance Diameter0.078 INCHES NOMINAL IN
Test Data Document81349-MIL-C-39029 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Surface TreatmentGOLD AND SILVER CONTACT
MaterialCOPPER ALLOY BODY
Pin Accommodation Length0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN
MaterialCOPPER ALLOY CONTACT
Overall Diameter0.091 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
Precious MaterialGOLD AND SILVER
Precious Material and Weight0.005 GOLD GRAINS, TROY AND 0.005 SILVER GRAINS, TROY
Mounting MethodFORCE FIT
Pin Accommodation Diameter0.046 INCHES MINIMUM AND 0.048 INCHES MAXIMUM IN
Style DesignatorSOCKET CONTACT
Precious Material and LocationBODY AND CONTACT SURFACES GOLD AND BODY AND CONTACT SURFACES SILVER
Surface TreatmentGOLD AND SILVER BODY
Cable Entrance Diameter0.078 INCHES NOMINAL IN
Test Data Document81349-MIL-C-39029 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Terminal Type and Quantity1 CRIMP AXIALLY AT ONE END
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-00-119-3214 (10-251416-202)
HAZMATNo
Weight0.0100 lbs
Cube0.0010 cu ft
Verified Substitutes 12
5999-00-007-7880M39029/57-355 SUCCESSOR
Contact,electrical
Sae International Dba Sae International
5999-00-119-321410-251416-202 SUCCESSOR
Contact,electrical
Amphenol Corp Div Amphenol Aerospace Operations
5999-00-197-3621M39029/57-358 SUCCESSOR
Contact,electrical
Sae International Dba Sae International
5999-00-402-2539M39029/57-359 SUCCESSOR
Contact,electrical
Sae International Dba Sae International
Contact,electrical
5999-01-011-1269M39029/57-356 SUCCESSOR
Contact,electrical
Sae International Dba Sae International
5999-01-158-1562M39029/57-357 SUCCESSOR
Contact,electrical
Sae International Dba Sae International
5999-00-152-9574M39029/56-351 INTERCHANGEABLE
Contact,electrical
Sae International Dba Sae International
5999-00-180-4275 INTERCHANGEABLE
Contact,electrical
5999-00-229-8446M39029/58-362 INTERCHANGEABLE
Contact,electrical
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS27491-20 Iss International Spares Services Gmbh (DEU)
10-497401-20S Amphenol Corp Div Amphenol Aerospace Operations (USA)
TC201F63 Souriau Usa, Inc. Dba Souriau Usa Inc (USA)
MS27491-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
VG96912S20-2 Baainbw Verteidigungsgerate-Normen (vg) (DEU)
MS27492-20D Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILC39029-57 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILC38999 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
55077002 Technology Dynamics, Inc. (USA)
10-251416-202 Amphenol Corp Div Amphenol Aerospace Operations (USA)
10-497401-205 Amphenol Corp Div Amphenol Aerospace Operations (USA)
MS27491-20 Ulmer Aeronautique (FRA)
Related Parts
SUCCESSOR 5999-00-119-3214 Contact,electrical · 10-251416-202
5999-00-007-7880SUCCESSOR
CONTACT,ELECTRICAL
M39029/57-355
5999-00-197-3621SUCCESSOR
CONTACT,ELECTRICAL
M39029/57-358
5999-00-402-2539SUCCESSOR
CONTACT,ELECTRICAL
M39029/57-359
5999-00-540-8656SUCCESSOR
CONTACT,ELECTRICAL
5999-01-011-1269SUCCESSOR
CONTACT,ELECTRICAL
M39029/57-356
5999-01-158-1562SUCCESSOR
CONTACT,ELECTRICAL
M39029/57-357
5999-00-152-9574INTERCHANGEABLE
CONTACT,ELECTRICAL
M39029/56-351
5999-00-180-4275INTERCHANGEABLE
CONTACT,ELECTRICAL
5999-00-229-8446INTERCHANGEABLE
CONTACT,ELECTRICAL
M39029/58-362
5999-00-478-4402INTERCHANGEABLE
CONTACT,ELECTRICAL
M39029/57-354
5999-01-033-9195INTERCHANGEABLE
CONTACT,ELECTRICAL

Frequently Asked Questions

What is NSN 5999-00-180-4274?

NSN 5999-00-180-4274 is a Contact,electrical, manufactured by Iss International Spares Services Gmbh, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-180-4274?

NSN 5999-00-180-4274 has 12 cross-referenced part numbers: MS27491-20 (Iss International Spares Services Gmbh), 10-497401-20S (Amphenol Corp Div Amphenol Aerospace Operations), TC201F63 (Souriau Usa, Inc. Dba Souriau Usa Inc), MS27491-20 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), VG96912S20-2 (Baainbw Verteidigungsgerate-Normen (vg)) and 7 more.

What NSN replaces 5999-00-180-4274?

There are 12 known substitutes for 5999-00-180-4274: 5999-00-007-7880, 5999-00-119-3214, 5999-00-197-3621 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27491-20?

Key specifications for MS27491-20: Pin Accommodation Length: 0.209 INCHES MINIMUM AND 0.229 INCHES MAXIMUM IN; Material: COPPER ALLOY CONTACT; Overall Diameter: 0.091 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN; Precious Material: GOLD AND SILVER. 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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