PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20520-2Knob

Mandzak Instrumentation Specialists Inc · NSN 5355-00-058-1055 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-058-1055 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-058-1055. Primary manufacturer part number: 20520-2.
Features
  • Knob — FSC 5355
  • Setscrew Hole Quantity: 1
  • Inside Width: 0.223 INCHES NOMINAL IN
  • Screw Drive Type: HEXAGON SOCKET
  • Overall Thickness: 0.718 INCHES NOMINAL IN
  • Attachment Method: SETSCREWS
  • Thread Quantity Per Inch: 32 SCREW HOLE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-058-1055, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mandzak Instrumentation Specialists Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5355-00-058-1055
Primary Part Number20520-2
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerMandzak Instrumentation Specialists Inc
StatusACTIVE
Setscrew Hole Quantity1
Inside Width0.223 INCHES NOMINAL IN
Screw Drive TypeHEXAGON SOCKET
Overall Thickness0.718 INCHES NOMINAL IN
Attachment MethodSETSCREWS
Thread Quantity Per Inch32 SCREW HOLE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Nominal Thread Size0.164 INCHES SCREW HOLE IN
ColorGRAY/GREY
Style DesignatorROUND WITH BAR FACE
Gripping Surface ConditionSMOOTH
Outside Diameter0.880 INCHES NOMINAL IN
Distance From Hole Center to Knob/skirt Base0.250 INCHES NOMINAL IN
Shaft Accommodation StyleFLATTED ONE SIDE
Inside Diameter0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1660-00-692-3294205202 INTERCHANGEABLE
Shaft,torsion,compr
Honeywell International Inc. Div Aerospace - Torrance
5999-01-492-70892052-02 INTERCHANGEABLE
Cooler,air,electronic Equipment
Rotron Incorporated
4810-01-596-5533205202 INTERCHANGEABLE
Valve,cross
G R Mfg
Cross-Reference Index
Part NumberManufacturer
20520-2 Mandzak Instrumentation Specialists Inc (USA)
Related Parts
1660-00-692-3294INTERCHANGEABLE
SHAFT,TORSION,COMPR
205202
5999-01-492-7089INTERCHANGEABLE
COOLER,AIR,ELECTRONIC EQUIPMENT
2052-02
4810-01-596-5533INTERCHANGEABLE
VALVE,CROSS
205202

Frequently Asked Questions

What is NSN 5355-00-058-1055?

NSN 5355-00-058-1055 is a Knob, manufactured by Mandzak Instrumentation Specialists Inc, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-00-058-1055?

NSN 5355-00-058-1055 has 1 cross-referenced part number: 20520-2 (Mandzak Instrumentation Specialists Inc).

What NSN replaces 5355-00-058-1055?

There are 3 known substitutes for 5355-00-058-1055: 1660-00-692-3294, 5999-01-492-7089, 4810-01-596-5533. Verify interchangeability with system specifications before substitution.

What are the specifications of 20520-2?

Key specifications for 20520-2: Setscrew Hole Quantity: 1; Inside Width: 0.223 INCHES NOMINAL IN; Screw Drive Type: HEXAGON SOCKET; Overall Thickness: 0.718 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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