PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-148728Connector,plug,electrical

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5935-00-521-0538 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-521-0538 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-521-0538. Primary manufacturer part number: SM-B-148728.
Features
  • Connector,plug,electrical — FSC 5935
  • Mating End Quantity: 1
  • Shell Surface Treatment: ANODIZE
  • Thread Series Designator: UNEF
  • Contact Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
  • Polarization Method: KEYWAY OR MULTIPLE KEYWAY
  • Terminal Type: SOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
  • Terminal Location: BACK SINGLE MATING END SINGLE CONTACT GROUPING
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,plug,electrical, cataloged under National Stock Number 5935-00-521-0538, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-00-521-0538
Primary Part NumberSM-B-148728
Item NameConnector,plug,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Mating End Quantity1
Shell Surface TreatmentANODIZE
Thread Series DesignatorUNEF
Contact Surface Treatment Document and ClassificationMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityNONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and Weight0.004 GOLD GRAINS, TROY
Nominal Thread Size0.750 INCHES AND 0.875 INCHES IN
Shell TypeSOLID
Contact Position Arrangement Style14S-2 SINGLE MATING END
Connector Locking MethodINTERNALLY THREADED COUPLING NUT
Shell MaterialALUMINUM ALLOY
Insert Position in Deg0.0
Contact Maximum Current Rating in Amps10.0 SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material and LocationCONTACT SURFACES GOLD
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Length0.375 INCHES AND 0.625 INCHES IN
Precious MaterialGOLD
Included Contact TypeROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity4 SINGLE MATING END SINGLE CONTACT GROUPING
Thread Class2A AND 2B A
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Overall Diameter1.125 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Body StyleSTRAIGHT SHAPE, INTERNAL COUPLING W/BACKSHELL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5955-00-238-2696 INTERCHANGEABLE
Oscillator,noncrystal Controlled
5120-00-244-1713 INTERCHANGEABLE
Inserter,screw Thread Insert
2815-00-417-11875352B INTERCHANGEABLE
Gear Assy
Fairbanks Morse, Llc
3030-01-033-84949385-2 INTERCHANGEABLE
Belts,v,matched Set
Gates Corporation
3950-01-176-589053514 INTERCHANGEABLE
Winch,drum,power Operated
Lake Shore Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
SM-B-148728 Amphenol Corp Spectra-Strip/itd (USA)
SM-B-148728 Amphenol Corp Div Amphenol Aerospace Operations (USA)
53514A Kleinschmidt Inc (USA)
53514 Kleinschmidt Inc (USA)
SM-B-148728 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5955-00-238-2696INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
5120-00-244-1713INTERCHANGEABLE
INSERTER,SCREW THREAD INSERT
2815-00-417-1187INTERCHANGEABLE
GEAR ASSY
5352B
3030-01-033-8494INTERCHANGEABLE
BELTS,V,MATCHED SET
9385-2
3950-01-176-5890INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
53514

Frequently Asked Questions

What is NSN 5935-00-521-0538?

NSN 5935-00-521-0538 is a Connector,plug,electrical, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-00-521-0538?

NSN 5935-00-521-0538 has 5 cross-referenced part numbers: SM-B-148728 (Amphenol Corp Spectra-Strip/itd), SM-B-148728 (Amphenol Corp Div Amphenol Aerospace Operations), 53514A (Kleinschmidt Inc), 53514 (Kleinschmidt Inc), SM-B-148728 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5935-00-521-0538?

There are 5 known substitutes for 5935-00-521-0538: 5955-00-238-2696, 5120-00-244-1713, 2815-00-417-1187 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-148728?

Key specifications for SM-B-148728: Mating End Quantity: 1; Shell Surface Treatment: ANODIZE; Thread Series Designator: UNEF; Contact Surface Treatment Document and Classification: MIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING. 28 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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