PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90-1LK2GKnob

Raytheon Company Div Corp · NSN 5355-00-821-6379 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-821-6379 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-821-6379. Primary manufacturer part number: 90-1LK2G.
Features
  • Knob — FSC 5355
  • Outside Diameter: 0.905 INCHES NOMINAL IN
  • Inside Diameter: 0.252 INCHES NOMINAL IN
  • Overall Thickness: 0.958 INCHES NOMINAL IN
  • Screw Drive Type: HEXAGON SOCKET
  • Attachment Method: SETSCREWS
  • Style Designator: ROUND
  • Color: BLACK
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Knob, cataloged under National Stock Number 5355-00-821-6379, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Raytheon Company Div Corp. Government technical data includes 21 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-00-821-6379
Primary Part Number90-1LK2G
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerRaytheon Company Div Corp
StatusCANCELLED
Outside Diameter0.905 INCHES NOMINAL IN
Inside Diameter0.252 INCHES NOMINAL IN
Overall Thickness0.958 INCHES NOMINAL IN
Screw Drive TypeHEXAGON SOCKET
Attachment MethodSETSCREWS
Style DesignatorROUND
ColorBLACK
Thread Quantity Per Inch32 SCREW HOLE
Pointer DesignNONDETACHABLE
Skirt DesignNONDETACHABLE
Skirt Outside Diameter0.640 INCHES MINIMUM IN
Nominal Thread Size0.164 INCHES SCREW HOLE IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Distance From Hole Center to Knob/skirt Base0.437 INCHES MAXIMUM IN
Shank StyleSTRAIGHT
Skirt StyleRING
Shank Length0.235 INCHES MAXIMUM IN
Shank Diameter0.845 INCHES MAXIMUM IN
Gripping Surface ConditionGRIP AID
Setscrew Hole Quantity2
Shaft Accommodation StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5310-00-121-762926-187 INTERCHANGEABLE
Washer,shouldered
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5120-00-277-2323 INTERCHANGEABLE
Wrench,open End
5330-00-429-068022F37 INTERCHANGEABLE
Gasket
Oshkosh Defense Llc
5985-01-224-586511442257-1 INTERCHANGEABLE
Coupler,directional
Us Army Aviation and Missile Command
5998-01-344-306026187 INTERCHANGEABLE
Circuit Card Assembly
Clayton Manufacturing Company
7220-01-411-2979000-48011-26187-4 INTERCHANGEABLE
Mat,floor
3m Company
1240-01-542-708426187 INTERCHANGEABLE
Case,optical Instrument
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
90-1LK2G PRIMARY Raytheon Company Div Corp (USA)
90-1LK2G Raytheon Company Dba Raytheon Co (USA)
90-1LK2G Zf Industrieantriebe Witten Gmbh (DEU)
68053002301 Elbitamerica, Inc. (USA)
26187 Litton Systems Inc Itek Optical Systems Div (USA)
Related Parts
5310-00-121-7629INTERCHANGEABLE
WASHER,SHOULDERED
26-187
5120-00-277-2323INTERCHANGEABLE
WRENCH,OPEN END
5330-00-429-0680INTERCHANGEABLE
GASKET
22F37
5985-01-224-5865INTERCHANGEABLE
COUPLER,DIRECTIONAL
11442257-1
5998-01-344-3060INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
26187
7220-01-411-2979INTERCHANGEABLE
MAT,FLOOR
000-48011-26187-4
1240-01-542-7084INTERCHANGEABLE
CASE,OPTICAL INSTRUMENT
26187

Frequently Asked Questions

What is NSN 5355-00-821-6379?

NSN 5355-00-821-6379 is a Knob, manufactured by Raytheon Company Div Corp, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-00-821-6379?

NSN 5355-00-821-6379 has 5 cross-referenced part numbers: 90-1LK2G (Raytheon Company Div Corp), 90-1LK2G (Raytheon Company Dba Raytheon Co), 90-1LK2G (Zf Industrieantriebe Witten Gmbh), 68053002301 (Elbitamerica, Inc.), 26187 (Litton Systems Inc Itek Optical Systems Div).

What NSN replaces 5355-00-821-6379?

There are 7 known substitutes for 5355-00-821-6379: 5310-00-121-7629, 5120-00-277-2323, 5330-00-429-0680 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90-1LK2G?

Key specifications for 90-1LK2G: Outside Diameter: 0.905 INCHES NOMINAL IN; Inside Diameter: 0.252 INCHES NOMINAL IN; Overall Depth: 0.730 INCHES NOMINAL IN; Overall Thickness: 0.958 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-00-821-6379 still in active supply?

NSN 5355-00-821-6379 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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