PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

128256Connector,receptacle,electrical

Wichmann Kg · NSN 5935-00-901-1567 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-901-1567 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-901-1567. Primary manufacturer part number: 128256.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 0.812 INCHES NOMINAL IN
  • Center to Center Distance Between Mounting Facilities Parallel to Height: 0.812 INCHES NOMINAL IN
  • Contact Position Arrangement Style: 12-3 SINGLE MATING END
  • Insert Position in Deg: 0.0
  • Precious Material: GOLD
  • Polarization Method: KEYWAY OR MULTIPLE KEYWAY
  • Contact Surface Treatment Document and Classification: MIL-G-45204 TY 1,CL 1,GRADE C MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 GRADE E FED SPEC 2ND TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-00-901-1567, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Wichmann Kg. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-901-1567
Primary Part Number128256
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerWichmann Kg
StatusACTIVE
Distance Between Centerlines of Mounting Facilities Parallel to Body Width0.812 INCHES NOMINAL IN
Center to Center Distance Between Mounting Facilities Parallel to Height0.812 INCHES NOMINAL IN
Contact Position Arrangement Style12-3 SINGLE MATING END
Insert Position in Deg0.0
Precious MaterialGOLD
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Contact Surface Treatment Document and ClassificationMIL-G-45204 TY 1,CL 1,GRADE C MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290 GRADE E FED SPEC 2ND TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING
Connector Locking MethodBAYONET PIN
Contact Surface TreatmentGOLD AND NICKEL SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and LocationCONTACT SURFACES GOLD
Included Contact Quantity3 SINGLE MATING END SINGLE CONTACT GROUPING
Shell MaterialALUMINUM ALLOY
Shell Material Document and ClassificationQQ-A-591 FED SPEC SINGLE MATERIAL RESPONSE
Precious Material and Weight0.015 GOLD GRAINS, TROY
Specification/standard Data96906-MS3122 GOVERNMENT STANDARD
Shell Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
Test Data Document81349-MIL-C-26482 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.).
Mating End Quantity1
Shell TypeSOLID
Shell Surface TreatmentCADMIUM
Environmental ProtectionMOISTURE RESISTANT AND SALT WATER RESISTANT AND VIBRATION RESISTANT
Distance From Mounting Shoulder to Front Face0.431 INCHES MINIMUM AND 0.462 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-539-10571168670 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-545-5992 INTERCHANGEABLE
Cone and Rollers,tapered Roller
5935-01-193-5597 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
128256 Wichmann Kg (DEU)
MS3122E12-3P Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-26482 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5M4541-225-41 Hensoldt Sensors Gmbh Div Seps (DEU)
128256 Hensoldt Optronics Gmbh - Standort Wetzlar- (DEU)
MIL-C-26482 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5M.4541.225.41 Elbit Systems Deutschland Gmbh & Co. Kg (DEU)
5M.4541.225.41 Hensoldt Sensors Gmbh Div Seps (DEU)
128256 Leica Geosystems Ag Dba Leica Geosystems Sa (CHE)
Related Parts
5945-00-539-1057INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
1168670
3110-00-545-5992INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5935-01-193-5597INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 5935-00-901-1567?

NSN 5935-00-901-1567 is a Connector,receptacle,electrical, manufactured by Wichmann Kg, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-901-1567?

NSN 5935-00-901-1567 has 9 cross-referenced part numbers: 128256 (Wichmann Kg), MS3122E12-3P (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-26482 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5M4541-225-41 (Hensoldt Sensors Gmbh Div Seps), 128256 (Hensoldt Optronics Gmbh - Standort Wetzlar-) and 4 more.

What NSN replaces 5935-00-901-1567?

There are 3 known substitutes for 5935-00-901-1567: 5945-00-539-1057, 3110-00-545-5992, 5935-01-193-5597. Verify interchangeability with system specifications before substitution.

What are the specifications of 128256?

Key specifications for 128256: Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 0.812 INCHES NOMINAL IN; Center to Center Distance Between Mounting Facilities Parallel to Height: 0.812 INCHES NOMINAL IN; Overall Width: 1.047 INCHES MAXIMUM IN; Contact Position Arrangement Style: 12-3 SINGLE MATING END. 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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