PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-615Knob

Neurotech Corp Control Electronics Div · NSN 5355-00-579-4490 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-579-4490 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-579-4490. Primary manufacturer part number: 21-615.
Features
  • Knob — FSC 5355
  • Inside Diameter: 0.253 INCHES NOMINAL IN
  • Reference Marking: LINE
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Screw Drive Type: HEXAGON SOCKET
  • Overall Thickness: 0.625 INCHES NOMINAL IN
  • Attachment Method: SETSCREWS
  • Nominal Thread Size: 0.164 INCHES SCREW HOLE IN
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-579-4490, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Neurotech Corp Control Electronics Div. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-00-579-4490
Primary Part Number21-615
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerNeurotech Corp Control Electronics Div
StatusCANCELLED
Inside Diameter0.253 INCHES NOMINAL IN
Reference MarkingLINE
Outside Diameter0.750 INCHES NOMINAL IN
Screw Drive TypeHEXAGON SOCKET
Overall Thickness0.625 INCHES NOMINAL IN
Attachment MethodSETSCREWS
Nominal Thread Size0.164 INCHES SCREW HOLE IN
ColorBLACK
Style DesignatorROUND WITH SINGLE POINTED BAR FACE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Pointer DesignNONDETACHABLE
Thread Quantity Per Inch32 SCREW HOLE
Gripping Surface ConditionSMOOTH
Shaft Accommodation StyleROUND
Distance From Hole Center to Knob/skirt Base0.281 INCHES NOMINAL IN
Setscrew Hole Quantity2
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
4730-00-111-121723850 INTERCHANGEABLE
Strainer Element,sediment
Pall Aeropower Corporation
5950-00-132-1891 INTERCHANGEABLE
Reactor-Transformer
4820-00-138-052721615 INTERCHANGEABLE
Repair Kit,valve
Provision, Inc. Dba Provision Inc
3110-00-142-4390592A INTERCHANGEABLE
Cup,tapered Roller Bearing
Rbc Bearings Incorporated Div West Trenton Division
4330-00-163-039599121615 INTERCHANGEABLE
Hook,cover Clamp
Alfa Laval Inc
5120-00-221-1145216-15 INTERCHANGEABLE
Punch and Die,grommet Inserting
C. S. Osborne and Company Dba Cs Osborne & Co
6640-00-442-900514-850-12A INTERCHANGEABLE
Test Paper and Color Chart,ph
Fisher Scientific Worldwide
5365-00-514-2500 INTERCHANGEABLE
Shim
5355-00-667-5504 INTERCHANGEABLE
Knob
6105-00-798-776525A562 INTERCHANGEABLE
Motor,direct Current
Globe Motors, Inc. Dba Allient Dayton
Cross-Reference Index
Part NumberManufacturer
AD0944975 J L M Electronics Inc Dba Pack Rite Company (USA)
AN3219-1 Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
2300R Davies Harry B (USA)
127K Rosemount Analytical Inc (USA)
21-615 PRIMARY Neurotech Corp Control Electronics Div (USA)
Related Parts
4730-00-111-1217INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
23850
5950-00-132-1891INTERCHANGEABLE
REACTOR-TRANSFORMER
4820-00-138-0527INTERCHANGEABLE
REPAIR KIT,VALVE
21615
3110-00-142-4390INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
592A
4330-00-163-0395INTERCHANGEABLE
HOOK,COVER CLAMP
99121615
5120-00-221-1145INTERCHANGEABLE
PUNCH AND DIE,GROMMET INSERTING
216-15
6640-00-442-9005INTERCHANGEABLE
TEST PAPER AND COLOR CHART,PH
14-850-12A
5365-00-514-2500INTERCHANGEABLE
SHIM
5355-00-667-5504INTERCHANGEABLE
KNOB
6105-00-798-7765INTERCHANGEABLE
MOTOR,DIRECT CURRENT
25A562
3040-01-165-5901INTERCHANGEABLE
SHAFT,SHOULDERED
21148

Frequently Asked Questions

What is NSN 5355-00-579-4490?

NSN 5355-00-579-4490 is a Knob, manufactured by Neurotech Corp Control Electronics Div, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-00-579-4490?

NSN 5355-00-579-4490 has 5 cross-referenced part numbers: AD0944975 (J L M Electronics Inc Dba Pack Rite Company), AN3219-1 (Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group), 2300R (Davies Harry B), 127K (Rosemount Analytical Inc), 21-615 (Neurotech Corp Control Electronics Div).

What NSN replaces 5355-00-579-4490?

There are 11 known substitutes for 5355-00-579-4490: 4730-00-111-1217, 5950-00-132-1891, 4820-00-138-0527 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-615?

Key specifications for 21-615: Overall Depth: 0.500 INCHES NOMINAL IN; Inside Diameter: 0.253 INCHES NOMINAL IN; Reference Marking: LINE; Outside Diameter: 0.750 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-00-579-4490 still in active supply?

NSN 5355-00-579-4490 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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