PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B67Transformer,power

B G Laboratories Inc. · NSN 5950-00-421-6261 · FSC 5950 · No Item Name Available
Verified by PartsTable
NSN 5950-00-421-6261 — this item is cataloged by the U.S. Government under National Stock Number 5950-00-421-6261. Primary manufacturer part number: B67.
Features
  • Transformer,power — FSC 5950
  • Mounting Method: THREADED HOLE(S) SINGLE GROUP
  • Thread Quantity Per Inch: 56 SINGLE GROUP
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
  • Body Length: 1.100 INCHES NOMINAL IN
  • Nominal Thread Size: 0.086 INCHES SINGLE GROUP IN
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: FULLY INCLOSED
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transformer,power, cataloged under National Stock Number 5950-00-421-6261, is classified within Federal Supply Class 5950 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is B G Laboratories Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5950-00-421-6261
Primary Part NumberB67
Item NameTransformer,power
FSC / FSG5950 / 59 — No Item Name Available
ManufacturerB G Laboratories Inc.
StatusACTIVE
Mounting MethodTHREADED HOLE(S) SINGLE GROUP
Thread Quantity Per Inch56 SINGLE GROUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
Body Length1.100 INCHES NOMINAL IN
Nominal Thread Size0.086 INCHES SINGLE GROUP IN
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeFULLY INCLOSED
Body Height0.600 INCHES NOMINAL IN
Body Width1.000 INCHES NOMINAL IN
Terminal Type and Quantity4 PIN
Winding Operating Voltage26.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
Frequency Rating400.0 HERTZ NOMINAL SINGLE COMPONENT
Winding Function and Quantity1 PRIMARY AND 1 SECONDARY SINGLE COMPONENT
Winding Operating Voltage6.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE SECONDARY
Input-Output Phase RelationshipSINGLE PHASE TO SINGLE PHASE SINGLE COMPONENT
Mounting Facility Quantity1 SINGLE GROUP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4320-00-009-057209917 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
3110-00-142-4282 INTERCHANGEABLE
Bearing,ball,airframe
5975-00-152-1040 INTERCHANGEABLE
Conduit Outlet
5310-00-187-0146120392 INTERCHANGEABLE
Washer,flat
Stewart & Stevenson Power Products Llc
3030-00-483-0956 INTERCHANGEABLE
Belt,v
3120-00-713-4651B6-7 INTERCHANGEABLE
Bearing,washer,thrust
Roller Bearing Co of America, Inc Div Pic Design
5310-00-809-4058 INTERCHANGEABLE
Washer,flat
4810-01-025-405576642 INTERCHANGEABLE
Diaphragm,valve,flat
Parker-Hannifin Corporation Dba Pneutronics Div Fluid Control Division
5310-01-103-6042 INTERCHANGEABLE
Washer,flat
5365-01-219-3845B6-7 INTERCHANGEABLE
Spacer,ring
Roller Bearing Co of America, Inc Div Pic Design
Cross-Reference Index
Part NumberManufacturer
1203-92 Bae Systems Information and Electronic Systems Integration Inc. (USA)
B67 PRIMARY B G Laboratories Inc. (USA)
9917 PRIMARY Standex Electronics, Inc. (USA)
Related Parts
4320-00-009-0572INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
09917
3110-00-142-4282INTERCHANGEABLE
BEARING,BALL,AIRFRAME
5975-00-152-1040INTERCHANGEABLE
CONDUIT OUTLET
5310-00-187-0146INTERCHANGEABLE
WASHER,FLAT
120392
3030-00-483-0956INTERCHANGEABLE
BELT,V
3120-00-713-4651INTERCHANGEABLE
BEARING,WASHER,THRUST
B6-7
5310-00-809-4058INTERCHANGEABLE
WASHER,FLAT
4810-01-025-4055INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
76642
5310-01-103-6042INTERCHANGEABLE
WASHER,FLAT
5365-01-219-3845INTERCHANGEABLE
SPACER,RING
B6-7
5930-01-293-5969INTERCHANGEABLE
SWITCH,FLOW
120392
5310-01-371-6005INTERCHANGEABLE
WASHER,FLAT
120392

Frequently Asked Questions

What is NSN 5950-00-421-6261?

NSN 5950-00-421-6261 is a Transformer,power, manufactured by B G Laboratories Inc., classified under FSC 5950 (No Item Name Available). Status: active.

What are the part numbers for NSN 5950-00-421-6261?

NSN 5950-00-421-6261 has 3 cross-referenced part numbers: 1203-92 (Bae Systems Information and Electronic Systems Integration Inc.), B67 (B G Laboratories Inc.), 9917 (Standex Electronics, Inc.).

What NSN replaces 5950-00-421-6261?

There are 12 known substitutes for 5950-00-421-6261: 4320-00-009-0572, 3110-00-142-4282, 5975-00-152-1040 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B67?

Key specifications for B67: Mounting Method: THREADED HOLE(S) SINGLE GROUP; Thread Quantity Per Inch: 56 SINGLE GROUP; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP; Body Length: 1.100 INCHES NOMINAL IN. 16 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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