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21 mm Electromechanical

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Length = 21 mm

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Switch Fixings +/-1000sccm (1 SLPM) 50mV dc @ 650 sccm JE-21 Honeywell 1: $108.01 4In Stock 5Expected 2026/11/09	Mfr. Part No. JE-21 Mouser Part No 785-JE-21	Honeywell	Switch Fixings +/-1000sccm (1 SLPM) 50mV dc @ 650 sccm	Datasheet	4In Stock 5Expected 2026/11/09	$108.01 $104.84 $93.41 View Quote	Min.: 1 Mult.: 1
Standoffs & Spacers CB THREADED STANDOFF:NYL NATURAL CBTS105A Essentra 1: $0.89 302In Stock	Mfr. Part No. CBTS105A Mouser Part No 144-CBTS105A	Essentra	Standoffs & Spacers CB THREADED STANDOFF:NYL NATURAL	Datasheet	302In Stock	$0.89 $0.776	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial 15A 250VAC SPST ON-OFF BLACK FASTON PB1973ABLKBLKEF0 E-Switch 1: $2.69 368In Stock 900Expected 2026/12/14	Mfr. Part No. PB1973ABLKBLKEF0 Mouser Part No 612-PB1973ABLKBLKEF0	E-Switch	Pushbutton Switches - Industrial 15A 250VAC SPST ON-OFF BLACK FASTON	Datasheet	368In Stock 900Expected 2026/12/14	$2.69 $2.35 $2.22 $2.14 View $1.97 $1.74 $1.67	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial ILLUM PUSHBUTTON DPST 15A 250V PB1973GBLKGILEF4 E-Switch 1: $4.61 33In Stock 600Expected 2026/10/30	Mfr. Part No. PB1973GBLKGILEF4 Mouser Part No 612-PB1973GBLKGILEF4	E-Switch	Pushbutton Switches - Industrial ILLUM PUSHBUTTON DPST 15A 250V	Datasheet	33In Stock 600Expected 2026/10/30	$4.61 $4.02 $3.80 $3.65 View $3.43 $3.27 $3.06 $2.95	Min.: 1 Mult.: 1
Bumpers / Feet Foot,Rivet Mnt,Blk,.031 in-.071 in Hold FF-005-P4X5B Essentra 1: $0.926 250In Stock	Mfr. Part No. FF-005-P4X5B Mouser Part No 144-FF-005-P4X5B	Essentra	Bumpers / Feet Foot,Rivet Mnt,Blk,.031 in-.071 in Hold	Datasheet	250In Stock	$0.926	Min.: 1 Mult.: 1
Bumpers / Feet Foot,Rivet Mnt,Blk,.075 in-.110 in Hold FF-008-P4X7B Essentra 1: $1.19 75In Stock	Mfr. Part No. FF-008-P4X7B Mouser Part No 144-FF-008-P4X7B	Essentra	Bumpers / Feet Foot,Rivet Mnt,Blk,.075 in-.110 in Hold	Datasheet	75In Stock	$1.19	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps RK 90 Lens 14mm 11/2-module transp. 5.46.681.023/1002 RAFI 1: $1.86 3In Stock	Mfr. Part No. 5.46.681.023/1002 Mouser Part No 611-546.681.023/1002	RAFI	Switch Bezels / Switch Caps RK 90 Lens 14mm 11/2-module transp.	Datasheet	3In Stock	$1.86 $1.64 $1.47 $1.44 View $1.41 $1.19 $1.09 $1.02	Min.: 1 Mult.: 1
Standoffs & Spacers M2.5X0.45 M/F 21mm AL Stdoff M2116-2545-AL RAF Electronic Hardware 1: $1.38 726In Stock	Mfr. Part No. M2116-2545-AL Mouser Part No 761-M2116-2545-AL	RAF Electronic Hardware	Standoffs & Spacers M2.5X0.45 M/F 21mm AL Stdoff Learn More about RAF Electronic Hardware raf 4 5mm hex standoffs	Datasheet	726In Stock	$1.38 $1.03 $0.801 $0.798 View $0.709 $0.684 $0.664 $0.649 Quote	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial ILLUM PUSHBUTTON SPST 15A 250V PB1973BBLKGILEF0 E-Switch 1: $2.73 419In Stock	Mfr. Part No. PB1973BBLKGILEF0 Mouser Part No 612-PB1973BBLKGILEF0	E-Switch	Pushbutton Switches - Industrial ILLUM PUSHBUTTON SPST 15A 250V	Datasheet	419In Stock	$2.73 $2.44 $2.30 $2.20 View $2.09 $1.99 $1.80	Min.: 1 Mult.: 1
Rocker Switches MINIATURE ROCKER SWITCH FOR HI CRRNT A8L-21-11N1 Omron Electronics 1: $3.78 300Expected 2027/03/17	Mfr. Part No. A8L-21-11N1 Mouser Part No 653-A8L-21-11N1	Omron Electronics	Rocker Switches MINIATURE ROCKER SWITCH FOR HI CRRNT	Datasheet	300Expected 2027/03/17	$3.78 $3.26 $3.04 $2.92 View $2.83 $2.70 $2.69 $2.63	Min.: 1 Mult.: 1
Standoffs & Spacers WA--SSTII M 3x21mm SW 5.5 970210321 Wurth Elektronik 1: $0.55 2,000Expected 2026/10/02	Mfr. Part No. 970210321 Mouser Part No 710-970210321	Wurth Elektronik	Standoffs & Spacers WA--SSTII M 3x21mm SW 5.5 Learn More about Wurth Elektronik pcb spacers	Datasheet	2,000Expected 2026/10/02	$0.55 $0.544 $0.488 $0.45 View $0.413 $0.338	Min.: 1 Mult.: 1
Standoffs & Spacers WA-SSTIE M 3x21mm SW 5.5 971210321 Wurth Elektronik 1: $0.72 965Expected 2027/02/26	Mfr. Part No. 971210321 Mouser Part No 710-971210321	Wurth Elektronik	Standoffs & Spacers WA-SSTIE M 3x21mm SW 5.5 Learn More about Wurth Elektronik pcb spacers	Datasheet	965Expected 2027/02/26	$0.72 $0.643 $0.59 $0.562 $0.508	Min.: 1 Mult.: 1
Standoffs & Spacers WA-SBRIE M3x21mm SW5.5 971210324 Wurth Elektronik 1: $1.87 1,000Expected 2026/10/30	Mfr. Part No. 971210324 Mouser Part No 710-971210324	Wurth Elektronik	Standoffs & Spacers WA-SBRIE M3x21mm SW5.5 Learn More about Wurth Elektronik pcb spacers	Datasheet	1,000Expected 2026/10/30	$1.87 $1.77 $1.58 $1.38 View $1.29 $1.22	Min.: 1 Mult.: 1
Pushbutton Switches - Industrial ILLUM PUSHBUTTON SPST 15A 250V PB1973BBLKBLKEF0 E-Switch 1: $2.43 1,795On Order	Mfr. Part No. PB1973BBLKBLKEF0 Mouser Part No 612-PB1973BBLKBLKEF0	E-Switch	Pushbutton Switches - Industrial ILLUM PUSHBUTTON SPST 15A 250V	Datasheet	1,795On Order On Order Ship Dates Mfr. No: PB1973BBLKBLKEF0 Stock: 0 On Order: 895 Expected 2026/11/17 900 Expected 2026/12/03 Factory Lead Time: 11 Weeks	$2.43 $2.12 $2.00 $1.91 View $1.78 $1.77 $1.62 $1.57	Min.: 1 Mult.: 1
Switch Fixings CENTER DIVIDER AT4144 NKK Switches 1: $3.40 66Factory Stock Available	Mfr. Part No. AT4144 Mouser Part No 633-AT4144	NKK Switches	Switch Fixings CENTER DIVIDER	Datasheet	66Factory Stock Available More Info Available	$3.40 $3.07 $2.95 $2.87 View $2.78 $2.54	Min.: 1 Mult.: 1
Standoffs & Spacers M2.5X0.45 M/F 21mm SS Stdoff M2116-2545-SS RAF Electronic Hardware 1: $2.14 1,371On Order	Mfr. Part No. M2116-2545-SS Mouser Part No 761-M2116-2545-SS	RAF Electronic Hardware	Standoffs & Spacers M2.5X0.45 M/F 21mm SS Stdoff Learn More about RAF Electronic Hardware raf 4 5mm hex standoffs	Datasheet	1,371On Order On Order Ship Dates Mfr. No: M2116-2545-SS Stock: 0 On Order: 71 Pending 1,300 Expected 2026/11/30 Factory Lead Time: 12 Weeks	$2.14 $1.64 $1.33 $1.26 View $1.23 $1.21 $1.20 $1.19	Min.: 1 Mult.: 1
Screws & Fasteners Lock Nut PG 11 6000118 Altech 50: $0.861 495Factory Stock Available	Mfr. Part No. 6000118 Mouser Part No 845-6000118	Altech	Screws & Fasteners Lock Nut PG 11	Datasheet	495Factory Stock Available More Info Available	$0.861 $0.814 $0.73 $0.711 View $0.686 $0.647 $0.637	Min.: 50 Mult.: 50
Screws & Fasteners EMC Lock Nut PG 1 1 6011011 Altech 50: $1.52 125Factory Stock Available	Mfr. Part No. 6011011 Mouser Part No 845-6011011	Altech	Screws & Fasteners EMC Lock Nut PG 1 1	Datasheet	125Factory Stock Available More Info Available	$1.52 $1.47 $1.30 $1.26 $1.13	Min.: 50 Mult.: 50
Switch Bezels / Switch Caps RECT CAP WHITE/WHITE AT3003BB NKK Switches 1: $6.33 21Factory Stock Available	Mfr. Part No. AT3003BB Mouser Part No 633-AT3003BB	NKK Switches	Switch Bezels / Switch Caps RECT CAP WHITE/WHITE Learn More about NKK Switches nkk at300x knobs	Datasheet	21Factory Stock Available More Info Available	$6.33 $5.62 $5.42 $5.29 View $5.14 $4.84 $4.65	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps RECT CAP YELLOW AT3003EB NKK Switches 1: $5.29 88Factory Stock Available	Mfr. Part No. AT3003EB Mouser Part No 633-AT3003E	NKK Switches	Switch Bezels / Switch Caps RECT CAP YELLOW Learn More about NKK Switches nkk at300x knobs	Datasheet	88Factory Stock Available More Info Available	$5.29 $4.92 $4.80 $4.72 $4.65	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps RECT BLUE CAP AT3003GB NKK Switches 1: $6.33 34Factory Stock Available	Mfr. Part No. AT3003GB Mouser Part No 633-AT3003GB	NKK Switches	Switch Bezels / Switch Caps RECT BLUE CAP Learn More about NKK Switches nkk at300x knobs	Datasheet	34Factory Stock Available More Info Available	$6.33 $5.62 $4.80 $4.72 $4.65	Min.: 1 Mult.: 1
Switch Bezels / Switch Caps RECTANGULAR CAP AMB AT3006JD NKK Switches 1: $5.04 765Factory Stock Available	Mfr. Part No. AT3006JD Mouser Part No 633-AT3006-JD	NKK Switches	Switch Bezels / Switch Caps RECTANGULAR CAP AMB Learn More about NKK Switches nkk at300x knobs	Datasheet	765Factory Stock Available More Info Available	$5.04 $4.47 $4.07 $3.97 $3.65	Min.: 1 Mult.: 1
Standoffs & Spacers M2.5X0.45 FEM 21mm AL Stdoff M1268-2545-AL RAF Electronic Hardware 1: $1.08 600On Order	Mfr. Part No. M1268-2545-AL Mouser Part No 761-M1268-2545-AL	RAF Electronic Hardware	Standoffs & Spacers M2.5X0.45 FEM 21mm AL Stdoff Learn More about RAF Electronic Hardware raf 4 5mm hex standoffs	Datasheet	600On Order On Order Ship Dates Mfr. No: M1268-2545-AL Stock: 0 On Order: 379 Expected 2026/10/09 221 Expected 2026/10/12 Factory Lead Time: 15 Weeks	$1.08 $0.784 $0.626 $0.563 View $0.551 $0.535 $0.488 $0.47 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers 3.0 X .05 THRD SS MAL/FML 21mm LENGTH FM2156-3005-SS Fascomp 1: $2.21 250Expected 2026/10/09	Mfr. Part No. FM2156-3005-SS Mouser Part No 728-FM2156-3005-SS	Fascomp	Standoffs & Spacers 3.0 X .05 THRD SS MAL/FML 21mm LENGTH	Datasheet	250Expected 2026/10/09	$2.21 $1.64 $1.28 $1.21 View $1.19 $1.15 $1.10 $1.07 Quote	Min.: 1 Mult.: 1
Standoffs & Spacers M2.5X0.45 FEM 21mm NYL Stdoff M1268-2545-N RAF Electronic Hardware 1: $2.64 56Factory Stock Available	Mfr. Part No. M1268-2545-N Mouser Part No 761-M1268-2545-N	RAF Electronic Hardware	Standoffs & Spacers M2.5X0.45 FEM 21mm NYL Stdoff Learn More about RAF Electronic Hardware raf 4 5mm hex standoffs	Datasheet	56Factory Stock Available More Info Available	$2.64 $2.44 $2.36 $2.30 View $2.20 $2.19 $2.17 Quote	Min.: 1 Mult.: 1