PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21121Knob

Jergens Inc Div Tooling Components Division · NSN 5355-01-685-6735 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-01-685-6735 — this item is cataloged by the U.S. Government under National Stock Number 5355-01-685-6735. Primary manufacturer part number: 21121.
Features
  • Knob — FSC 5355
  • Overall Thickness: 0.6875 INCHES NOMINAL IN
  • Thread Class: 2B
  • Fluted Foil Quantity: 4
  • Width: 3.00 INCHES NOMINAL IN
  • Style Designator: FLUTED FOILS
  • Nominal Thread Size: 1.375 INCHES SCREW HOLE IN
  • Material: ALUMINUM ALLOY
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Knob, cataloged under National Stock Number 5355-01-685-6735, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Jergens Inc Div Tooling Components Division. Government technical data includes 8 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5355-01-685-6735
Primary Part Number21121
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerJergens Inc Div Tooling Components Division
StatusACTIVE
Overall Thickness0.6875 INCHES NOMINAL IN
Thread Class2B
Fluted Foil Quantity4
Width3.00 INCHES NOMINAL IN
Style DesignatorFLUTED FOILS
Nominal Thread Size1.375 INCHES SCREW HOLE IN
MaterialALUMINUM ALLOY
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5355-00-144-698621-1-21 INTERCHANGEABLE
Dial,control
Vishay Sprague Inc
6210-00-152-38692112-1 INTERCHANGEABLE
Light,indicator
Safran Electronics & Defense, Avionics Usa, Llc
5120-00-264-3796 INTERCHANGEABLE
Wrench,adjustable
5360-00-312-46183238986 INTERCHANGEABLE
Spring,helical,torsion
Hatch & Kirk, Inc.
5905-00-439-6397211-21 INTERCHANGEABLE
Resistor,thermal
Keysight Technologies Inc
5330-00-523-668164130 INTERCHANGEABLE
Gasket
Curtiss-Wright Controls, Inc. Div Actuation Division
7510-00-634-020900032 INTERCHANGEABLE
Protector,document
C Line Products, Inc.
6750-01-077-4741101 7383 INTERCHANGEABLE
Film,photographic
Eastman Kodak Co
3040-01-185-443421121 INTERCHANGEABLE
Gearshaft,spur
Moog Inc. Dba Ampac-Isp Corp
7530-01-366-585628881 INTERCHANGEABLE
Book,appointment
Franklin Covey Co Government Group Products
Cross-Reference Index
Part NumberManufacturer
21121 PRIMARY Jergens Inc Div Tooling Components Division (USA)
Related Parts
5355-00-144-6986INTERCHANGEABLE
DIAL,CONTROL
21-1-21
6210-00-152-3869INTERCHANGEABLE
LIGHT,INDICATOR
2112-1
5120-00-264-3796INTERCHANGEABLE
WRENCH,ADJUSTABLE
5360-00-312-4618INTERCHANGEABLE
SPRING,HELICAL,TORSION
3238986
5905-00-439-6397INTERCHANGEABLE
RESISTOR,THERMAL
211-21
5330-00-523-6681INTERCHANGEABLE
GASKET
64130
7510-00-634-0209INTERCHANGEABLE
PROTECTOR,DOCUMENT
00032
6750-01-077-4741INTERCHANGEABLE
FILM,PHOTOGRAPHIC
101 7383
3040-01-185-4434INTERCHANGEABLE
GEARSHAFT,SPUR
21121
7530-01-366-5856INTERCHANGEABLE
BOOK,APPOINTMENT
28881
6550-01-386-0629INTERCHANGEABLE
TEST DISK,MORAXELLA CATARRHALIS
21-121

Frequently Asked Questions

What is NSN 5355-01-685-6735?

NSN 5355-01-685-6735 is a Knob, manufactured by Jergens Inc Div Tooling Components Division, classified under FSC 5355 (No Item Name Available). Status: active.

What are the part numbers for NSN 5355-01-685-6735?

NSN 5355-01-685-6735 has 1 cross-referenced part number: 21121 (Jergens Inc Div Tooling Components Division).

What NSN replaces 5355-01-685-6735?

There are 11 known substitutes for 5355-01-685-6735: 5355-00-144-6986, 6210-00-152-3869, 5120-00-264-3796 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21121?

Key specifications for 21121: End Item Identification: 5895-01-561-3705; Overall Thickness: 0.6875 INCHES NOMINAL IN; Thread Class: 2B; Fluted Foil Quantity: 4. 10 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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