PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

502KCover,junction Box

Ni Industries Inc Bowers Mfg Co Div · NSN 5975-00-153-6774 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-153-6774 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-153-6774. Primary manufacturer part number: 502K.
Features
  • Cover,junction Box — FSC 5975
  • Cover Type: KNOCKOUT AND RAISED
  • Mounting Hole Diameter: 0.328 INCHES NOMINAL IN
  • Outside Diameter: 4.000 INCHES NOMINAL IN
  • Cover Opening Shape and Quantity: 1 ROUND
  • Cover Mounting Hole Circle Diameter: 3.500 INCHES NOMINAL IN
  • Standard Wiring Device Quantity: 1
  • Cover Attachment Method: SCREW AND WASHER
Applications
  • Applications requiring Steel Cover construction
General Description

The Cover,junction Box, cataloged under National Stock Number 5975-00-153-6774, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Ni Industries Inc Bowers Mfg Co Div. Government technical data includes 12 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5975-00-153-6774
Primary Part Number502K
Item NameCover,junction Box
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerNi Industries Inc Bowers Mfg Co Div
StatusACTIVE
Cover TypeKNOCKOUT AND RAISED
Mounting Hole Diameter0.328 INCHES NOMINAL IN
Outside Diameter4.000 INCHES NOMINAL IN
Cover Opening Shape and Quantity1 ROUND
Cover Mounting Hole Circle Diameter3.500 INCHES NOMINAL IN
Standard Wiring Device Quantity1
Cover Attachment MethodSCREW AND WASHER
Cover Mounting Hole Quantity2
MaterialSTEEL COVER
Nondefinitive Spec/std DataB SIZE AND 6 STYLE AND VIII TYPE
Style DesignatorRAISED OFFSET MOUNTING HOLES
Surface TreatmentZINC OR CADMIUM COVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6135-00-125-5256 INTERCHANGEABLE
Battery,nonrechargeable
3110-00-156-46285414 INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5977-00-178-8127234-0090-000 INTERCHANGEABLE
Brush,electrical Contact
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5306-00-292-8261 INTERCHANGEABLE
Bolt,close Tolerance
1620-00-672-78948414 INTERCHANGEABLE
Pulley Assy,steer D
Goodrich Corporation
4820-01-270-0893153F-1-5.00IN INTERCHANGEABLE
Valve,angle
William E Williams Valve Corp
4820-01-276-35178414 PIECE 3 INTERCHANGEABLE
Stem,fluid Valve
William E Williams Valve Corp
4820-01-276-36128414 PC 5 INTERCHANGEABLE
Disk,valve
William E Williams Valve Corp
5940-01-422-27498414 INTERCHANGEABLE
Terminal Board
Hoyt Corporation
5340-01-529-1498 INTERCHANGEABLE
Standoff,threaded,spacing
Cross-Reference Index
Part NumberManufacturer
502K Ni Industries Inc Bowers Mfg Co Div (USA)
725 Raco, a Division of Hubbell Incorporated(delaware) (USA)
26AR Porter H K Co Inc Electrical Div Ambridge Works (USA)
A-A-59214 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
W-J-800 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
A-A-59214-8-B-6 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
54C7 Abb Installation Products Inc (USA)
128TYPE8SIZESSTYLE45 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
8414 Egs Electrical Group Appleton Div (USA)
Related Parts
6135-00-125-5256INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
3110-00-156-4628INTERCHANGEABLE
BEARING,BALL,ANNULAR
5414
5977-00-178-8127INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
234-0090-000
5306-00-292-8261INTERCHANGEABLE
BOLT,CLOSE TOLERANCE
1620-00-672-7894INTERCHANGEABLE
PULLEY ASSY,STEER D
8414
4820-01-270-0893INTERCHANGEABLE
VALVE,ANGLE
153F-1-5.00IN
4820-01-276-3517INTERCHANGEABLE
STEM,FLUID VALVE
8414 PIECE 3
4820-01-276-3612INTERCHANGEABLE
DISK,VALVE
8414 PC 5
5940-01-422-2749INTERCHANGEABLE
TERMINAL BOARD
8414
5340-01-529-1498INTERCHANGEABLE
STANDOFF,THREADED,SPACING

Frequently Asked Questions

What is NSN 5975-00-153-6774?

NSN 5975-00-153-6774 is a Cover,junction Box, manufactured by Ni Industries Inc Bowers Mfg Co Div, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-00-153-6774?

NSN 5975-00-153-6774 has 9 cross-referenced part numbers: 502K (Ni Industries Inc Bowers Mfg Co Div), 725 (Raco, a Division of Hubbell Incorporated(delaware)), 26AR (Porter H K Co Inc Electrical Div Ambridge Works), A-A-59214 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), W-J-800 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 5975-00-153-6774?

There are 10 known substitutes for 5975-00-153-6774: 6135-00-125-5256, 3110-00-156-4628, 5977-00-178-8127 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 502K?

Key specifications for 502K: Cover Type: KNOCKOUT AND RAISED; Mounting Hole Diameter: 0.328 INCHES NOMINAL IN; Outside Diameter: 4.000 INCHES NOMINAL IN; Cover Opening Shape and Quantity: 1 ROUND. 13 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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