Furuno FAR-2157-BB, FAR-2157-D installation manual Name Type Qty

Antenna Radiator

Rotation Coupler

Antenna Base

Feeder Waveguide

Parts of antenna unit XN4A/XN5A

List of parts for assembling antenna unit

No.	Name	Type	Qty
1	O-ring	AS568-125	2
2	Hex Bolt B	M4×16 (SUS304)	8
3	Hex Bolt	Antenna unit XN4A: M8×25 (SUS304)	4
		Antenna unit XN5A: M8×35 (SUS304)
4	Spring Washer	M8 (SUS304)	4
5	Flat Washer	M8 (SUS304)	4
6	Hex Bolt	M8×30 (SUS304)	4
7	Flat Washer	M8 (SUS304)	8
8	Spring Washer	M8 (SUS304)	4
9	Hex Nut	M8 (SUS304)	4
10	Hex Bolt	M4×30 (SUS304)	2
11	Spring Washer	M4 (SUS304)	2
12	Flat Washer	M4 (SUS304)	2
13	Waveguide Clamp	RSB-2006-2	1
14	Waveguide Clamp Insulator	03-003-4003-0	1
	Chemiseal	S-8400W, aluminum tube, 50g	1

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