PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-9177Connector-Switch

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5999-01-333-3149 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-333-3149 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-333-3149. Primary manufacturer part number: MIL-C-9177.
Features
  • Connector-Switch — FSC 5999
  • Specification/standard Data: 81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION
  • General Characteristics Item Description: BODY AND INSULATION MATERIAL POLYSTYRENE PER MIL-M-21347 OR GLASS-FILLED NYLON PER L-P-395,TYPE 2,CLASS 3,GRADE A
  • Test Data Document: 81349-MIL-C-9177 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.).
  • Specification/standard Data: 81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION
  • General Characteristics Item Description: BODY AND INSULATION MATERIAL POLYSTYRENE PER MIL-M-21347 OR GLASS-FILLED NYLON PER L-P-395,TYPE 2,CLASS 3,GRADE A
  • Test Data Document: 81349-MIL-C-9177 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.).
  • 8 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Connector-Switch, cataloged under National Stock Number 5999-01-333-3149, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-333-3149
Primary Part NumberMIL-C-9177
Item NameConnector-Switch
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Specification/standard Data81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION
General Characteristics Item DescriptionBODY AND INSULATION MATERIAL POLYSTYRENE PER MIL-M-21347 OR GLASS-FILLED NYLON PER L-P-395,TYPE 2,CLASS 3,GRADE A
Test Data Document81349-MIL-C-9177 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.).
Specification/standard Data81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION
General Characteristics Item DescriptionBODY AND INSULATION MATERIAL POLYSTYRENE PER MIL-M-21347 OR GLASS-FILLED NYLON PER L-P-395,TYPE 2,CLASS 3,GRADE A
Test Data Document81349-MIL-C-9177 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.).
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-01-134-1357
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZZ
Weight0.1900 lbs
Cube0.0184 cu ft
Verified Substitutes 6
Connector-Switch
5935-00-246-2383 INTERCHANGEABLE
Plug,telephone
5305-00-494-2052 INTERCHANGEABLE
Screw,machine
5935-00-642-0626 INTERCHANGEABLE
Plug,telephone
5935-00-665-5125 INTERCHANGEABLE
Jack,telephone
5999-01-540-3645M9177/5-2 INTERCHANGEABLE
Connector-Switch
Amphenol Corporation Dba Amphenol Nexus Technologies
Cross-Reference Index
Part NumberManufacturer
MIL-C-9177 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M9177/5-2 Leonardo Spa Helicopters Division - Production Site (ITA)
MIL-C-9177/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M9177/5-1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M9177/5-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-9177/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5999PL2093124 Jednolity Indeks Materialowy - Uniform Material Index (POL)
5999PL1148989 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
SUCCESSOR 5999-01-134-1357 Connector-Switch
5935-00-246-2383INTERCHANGEABLE
PLUG,TELEPHONE
5305-00-494-2052INTERCHANGEABLE
SCREW,MACHINE
5935-00-642-0626INTERCHANGEABLE
PLUG,TELEPHONE
5935-00-665-5125INTERCHANGEABLE
JACK,TELEPHONE
5999-01-540-3645INTERCHANGEABLE
CONNECTOR-SWITCH
M9177/5-2

Frequently Asked Questions

What is NSN 5999-01-333-3149?

NSN 5999-01-333-3149 is a Connector-Switch, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-333-3149?

NSN 5999-01-333-3149 has 8 cross-referenced part numbers: MIL-C-9177 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M9177/5-2 (Leonardo Spa Helicopters Division - Production Site), MIL-C-9177/5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M9177/5-1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M9177/5-2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5999-01-333-3149?

There are 6 known substitutes for 5999-01-333-3149: 5999-01-134-1357, 5935-00-246-2383, 5305-00-494-2052 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-9177?

Key specifications for MIL-C-9177: Specification/standard Data: 81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION; General Characteristics Item Description: BODY AND INSULATION MATERIAL POLYSTYRENE PER MIL-M-21347 OR GLASS-FILLED NYLON PER L-P-395,TYPE 2,CLASS 3,GRADE A; Test Data Document: 81349-MIL-C-9177 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.).; Specification/standard Data: 81349-MIL-C-9177/5 GOVERNMENT SPECIFICATION. 6 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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