Material Specific gravity	Shape
		Product code	Weight(g)	Product code	Weight(g)
Brass Spacer	8.9	BSB-310E	2.0	CB-305E	0.84
Stainless steel Spacer	8.03	BSU-310	1.85	CU-305	0.78
Steel Spacer	7.8	BSF-310E	1.85	CF-305E	0.80
Aluminum Spacer	2.7	BSL-310E	0.67	CL-305E	0.28
Lead-free Brass Spacer	8.45	BSE-310N	2.0	CE-305	0.84
Titanium Spacer	4.51	BSTI-310	1.07	CTI-305	0.49
Ceramic Spacer	3.7	-	-	CR-305	0.50
Duracon Spacer	1.41	BS-310E	0.68	C-305	0.14
PBT Spacer	1.52	BSZ-310E	0.68	CZ-305	0.15
PTFE Spacer	2.1	-	-	CT-305*1	0.32
Phenol resin Spacer	1.35	-	-	CX-305	0.13
PPS Spacer	1.66	BSP-310E	0.7	CP-305	0.16
PEEK Spacer	1.3	BSPE-310	0.74	CPE-305	0.13
Nylon Spacer	1.14	-	-	CN-305*2	0.06
Reny Spacer	1.65	BSRY-310	0.39	-	-

• ^*1　PTFESpacer outer diameter Φ7
• ^*2　Nylon spacer outer diameter Φ5