PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6671Knob

Belfort Instrument Company · NSN 5355-01-230-0839 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-01-230-0839 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-230-0839. Primary manufacturer part number: 6671.
Features
  • Knob — FSC 5355
  • Gripping Surface Condition: GRIP AID
  • Material: ALUMINUM ALLOY 2024
  • Thread Quantity Per Inch: 40 SCREW HOLE
  • Style Designator: ROUND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
  • Nominal Thread Size: 0.125 INCHES SCREW HOLE IN
  • Attachment Method: SETSCREWS
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Knob, cataloged under National Stock Number 5355-01-230-0839, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Belfort Instrument Company. Government technical data includes 12 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5355-01-230-0839
Primary Part Number6671
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerBelfort Instrument Company
StatusACTIVE
Gripping Surface ConditionGRIP AID
MaterialALUMINUM ALLOY 2024
Thread Quantity Per Inch40 SCREW HOLE
Style DesignatorROUND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Nominal Thread Size0.125 INCHES SCREW HOLE IN
Attachment MethodSETSCREWS
Distance From Hole Center to Knob/skirt Base0.531 INCHES NOMINAL IN
Setscrew Hole Quantity2
Screw Drive TypeSLOT
Overall Thickness0.625 INCHES NOMINAL IN
Outside Diameter1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5210-00-004-066352837 INTERCHANGEABLE
Blade,thickness Gage
L.s. Starrett Company (the) Div Tool Division
5940-00-842-0221977 INTERCHANGEABLE
Terminal,stud
Lta/d-Cemco Inc Dba D-Cemco
5950-00-947-6628 INTERCHANGEABLE
Transformer,radio Frequency
4310-01-098-12456671 INTERCHANGEABLE
Bumper,valve Intake
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4820-01-274-67356671 INTERCHANGEABLE
Body Assembly Valve
Greno Industries, Inc. Dba Greno Industries Inc
5331-01-376-66546671 INTERCHANGEABLE
O-Ring
Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Curtiss-Wright / Nu-Torque
Cross-Reference Index
Part NumberManufacturer
6671 PRIMARY Belfort Instrument Company (USA)
Related Parts
5210-00-004-0663INTERCHANGEABLE
BLADE,THICKNESS GAGE
52837
5940-00-842-0221INTERCHANGEABLE
TERMINAL,STUD
977
5950-00-947-6628INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
4310-01-098-1245INTERCHANGEABLE
BUMPER,VALVE INTAKE
6671
4820-01-274-6735INTERCHANGEABLE
BODY ASSEMBLY VALVE
6671
5331-01-376-6654INTERCHANGEABLE
O-RING
6671

Frequently Asked Questions

What is NSN 5355-01-230-0839?

NSN 5355-01-230-0839 is a Knob, manufactured by Belfort Instrument Company, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-01-230-0839?

NSN 5355-01-230-0839 has 1 cross-referenced part number: 6671 (Belfort Instrument Company).

What NSN replaces 5355-01-230-0839?

There are 6 known substitutes for 5355-01-230-0839: 5210-00-004-0663, 5940-00-842-0221, 5950-00-947-6628 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6671?

Key specifications for 6671: Gripping Surface Condition: GRIP AID; Material: ALUMINUM ALLOY 2024; Thread Quantity Per Inch: 40 SCREW HOLE; Style Designator: ROUND. 12 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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