PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HRS-4Knob

Dar Electronics Inc Dba National Radio Co · NSN 5355-00-680-8443 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-680-8443 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-680-8443. Primary manufacturer part number: HRS-4.
Features
  • Knob — FSC 5355
  • Style Designator: ROUND
  • Reference Marking: SINGLE LINE
  • Shaft Accommodation Style: ROUND
  • Color: BLACK
  • Skirt Design: NONDETACHABLE
  • Setscrew Hole Quantity: 1
  • Overall Thickness: 0.750 INCHES NOMINAL IN
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-680-8443, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dar Electronics Inc Dba National Radio Co. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-00-680-8443
Primary Part NumberHRS-4
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerDar Electronics Inc Dba National Radio Co
StatusCANCELLED
Style DesignatorROUND
Reference MarkingSINGLE LINE
Shaft Accommodation StyleROUND
ColorBLACK
Skirt DesignNONDETACHABLE
Setscrew Hole Quantity1
Overall Thickness0.750 INCHES NOMINAL IN
Screw Drive TypeSLOT
Outside Diameter0.875 INCHES MAXIMUM IN
Inside Diameter0.250 INCHES NOMINAL IN
Gripping Surface ConditionGRIP AID
Attachment MethodSETSCREWS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5961-00-071-1558 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-952-82244036887P5 INTERCHANGEABLE
Semiconductor Device,diode
General Electric Co Mobile Communications Business Div
Cross-Reference Index
Part NumberManufacturer
HRS-4 Dar Electronics Inc Dba National Radio Co (USA)
HRS4 Viking Technologies, Ltd. (USA)
171-1 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
HRS4 Dar Electronics Inc Commercial Products Div Dba National Radio Co (USA)
HR54 National Mfg Co (USA)
HRS4 Strux Corp (USA)
Related Parts
5961-00-071-1558INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-952-8224INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4036887P5

Frequently Asked Questions

What is NSN 5355-00-680-8443?

NSN 5355-00-680-8443 is a Knob, manufactured by Dar Electronics Inc Dba National Radio Co, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-00-680-8443?

NSN 5355-00-680-8443 has 6 cross-referenced part numbers: HRS-4 (Dar Electronics Inc Dba National Radio Co), HRS4 (Viking Technologies, Ltd.), 171-1 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), HRS4 (Dar Electronics Inc Commercial Products Div Dba National Radio Co), HR54 (National Mfg Co) and 1 more.

What NSN replaces 5355-00-680-8443?

There are 2 known substitutes for 5355-00-680-8443: 5961-00-071-1558, 5961-00-952-8224. Verify interchangeability with system specifications before substitution.

What are the specifications of HRS-4?

Key specifications for HRS-4: Style Designator: ROUND; Reference Marking: SINGLE LINE; Shaft Accommodation Style: ROUND; Color: BLACK. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-00-680-8443 still in active supply?

NSN 5355-00-680-8443 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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