PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C-51Connector,receptacle,electrical

Hoffman Engineering, Llc Dba Hoffman Engineering Llc · NSN 5935-01-011-4748 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-011-4748 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-011-4748. Primary manufacturer part number: C-51.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Thread Class: 2A A
  • Threaded Device Type: MOUNTING BUSHING
  • Mating End Quantity: 1
  • Thread Series Designator: UNEF
  • Shell Material: COPPER ALLOY
  • Shell Material Document and Classification: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
  • Included Contact Quantity: 1 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 5935-01-011-4748, 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 Hoffman Engineering, Llc Dba Hoffman Engineering Llc. Government technical data includes 26 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-01-011-4748
Primary Part NumberC-51
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerHoffman Engineering, Llc Dba Hoffman Engineering Llc
StatusACTIVE
Thread Class2A A
Threaded Device TypeMOUNTING BUSHING
Mating End Quantity1
Thread Series DesignatorUNEF
Shell MaterialCOPPER ALLOY
Shell Material Document and ClassificationQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
Included Contact Quantity1 SINGLE MATING END SINGLE CONTACT GROUPING
Shell TypeSOLID
Bushing Accommodation Hole ShapeROUND
Insert Material Document and ClassificationMIL-P-19468 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END
Terminal TypeTAB, SOLDER LUG SINGLE MATING END SINGLE CONTACT GROUPING
Shell Surface Treatment Document and ClassificationMIL-T-10727,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Thread Quantity Per Inch32
Insert MaterialPLASTIC POLYTETRAFLUOROETHYLENE SINGLE MATING END
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Thread DirectionRIGHT-HAND
Contact MaterialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface TreatmentTIN SINGLE MATING END SINGLE CONTACT GROUPING
Contact Position Arrangement StyleNONSTD SINGLE MATING END
Shell Surface TreatmentTIN
Contact Surface Treatment Document and ClassificationMIL-T-10727,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Contact Material Document and ClassificationQQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeCOAXIAL SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size0.313 INCHES IN
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-00-017-052766C43042 INTERCHANGEABLE
Relay,electromagnetic
Ogden Air Logistics Center
6110-00-080-749311073597 INTERCHANGEABLE
Control-Indicator Subassembly
Us Army Aviation and Missile Command
5330-00-083-3157 INTERCHANGEABLE
Gasket
5999-00-201-372434797-1 INTERCHANGEABLE
Cap,electrical
Raytheon Company Dba Raytheon
5940-00-204-916243350-11 INTERCHANGEABLE
Terminal,lug
Hydro-Aire Aerospace Corp
4730-00-224-73230960-0034 INTERCHANGEABLE
Nipple,tube
Victor Equipment Co
5360-00-246-9557 INTERCHANGEABLE
Spring,helical,extension
3030-00-529-0296 INTERCHANGEABLE
Belt,v
4920-00-609-8649 INTERCHANGEABLE
Load Bank Assy,heat
5315-00-811-3439C5-1 INTERCHANGEABLE
Pin,spring
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
185729-1 Raytheon Company (USA)
C-51 PRIMARY Hoffman Engineering, Llc Dba Hoffman Engineering Llc (USA)
Related Parts
5945-00-017-0527INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
66C43042
6110-00-080-7493INTERCHANGEABLE
CONTROL-INDICATOR SUBASSEMBLY
11073597
5330-00-083-3157INTERCHANGEABLE
GASKET
5999-00-201-3724INTERCHANGEABLE
CAP,ELECTRICAL
34797-1
5940-00-204-9162INTERCHANGEABLE
TERMINAL,LUG
43350-11
4730-00-224-7323INTERCHANGEABLE
NIPPLE,TUBE
0960-0034
5360-00-246-9557INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
3030-00-529-0296INTERCHANGEABLE
BELT,V
4920-00-609-8649INTERCHANGEABLE
LOAD BANK ASSY,HEAT
5315-00-811-3439INTERCHANGEABLE
PIN,SPRING
C5-1
5945-00-924-4416INTERCHANGEABLE
RELAY
3950-01-363-9691INTERCHANGEABLE
GIN,POLE

Frequently Asked Questions

What is NSN 5935-01-011-4748?

NSN 5935-01-011-4748 is a Connector,receptacle,electrical, manufactured by Hoffman Engineering, Llc Dba Hoffman Engineering Llc, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-01-011-4748?

NSN 5935-01-011-4748 has 2 cross-referenced part numbers: 185729-1 (Raytheon Company), C-51 (Hoffman Engineering, Llc Dba Hoffman Engineering Llc).

What NSN replaces 5935-01-011-4748?

There are 12 known substitutes for 5935-01-011-4748: 5945-00-017-0527, 6110-00-080-7493, 5330-00-083-3157 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C-51?

Key specifications for C-51: Thread Class: 2A A; Threaded Device Type: MOUNTING BUSHING; Mating End Quantity: 1; Overall Length: 0.560 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN. 29 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