Borosilicate Glass Rods And Discs

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Shape

Material

System of Measurement

Diameter

Length

Color

Maximum Temperature

Clarity

Fabrication

Hardness

Maximum Pressure

Performance

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

REACH

Refractive Index

Certification

Military Specification

MIL-G-2860

MIL-G-47033

Minimum Temperature

Not Rated

Thermal Conductivity @ Temperature

7.8 BTU⋅in/(hr⋅ft²⋅°F) @ 194° F

1.2 BTU⋅in/(hr⋅ft²⋅°F) @ 212° F

RoHS

Compliant

Modulus of Elasticity

63 kN/mm²

Density

0.08 lb/in³

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

Exempt

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60 Products

Borosilicate Glass Rods and Discs

Also called Pyrex and Schott glass, this glass resists clouding and pitting and is highly chemical and heat resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.

Also Available: Other disc sizes. Please select 8477K98 and specify the diameter and length.

Rods

					Temp.			12" Long		24" Long
	Dia.	Dia. Tolerance	Edge Fabrication	Mil. Spec.	Min.	Max., ° F	Color		Each		Each
Annealed



		1/2"	-0.020" to 0.020"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K51	000000	8496K61	000000


		5/8"	-0.024" to 0.024"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K52	00000	8496K62	00000
		3/4"	-0.031" to 0.031"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K53	00000	8496K63	00000
		1"	-0.039" to 0.039"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K54	00000	8496K64	00000
		1 1/4"	-0.051" to 0.051"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K55	00000	8496K65	00000
		1 1/2"	-0.067" to 0.067"	Ground	MIL-G-47033	Not Rated	445	Clear	8496K56	00000	8496K66	000000
		2 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K1	0000	8496K2	0000
		3 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K11	0000	8496K21	0000
		4 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K12	0000	8496K22	0000
		5 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K13	0000	8496K23	0000
		6 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K14	0000	8496K24	0000


		7 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K15	0000	8496K25	0000
		8 mm	-0.400 mm to 0.400 mm	Ground	MIL-G-47033	Not Rated	445	Clear	8496K16	0000	8496K26	00000

Discs

					Temp.
	Dia.	Dia. Tolerance	Edge Fabrication	Mil. Spec.	Min.	Max., ° F	Color		1/8" Long	3/16" Long	1/4" Long	3/8" Long	1/2" Long	5/8" Long	3/4" Long
Annealed



		1"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K18	000000	000000	000000	000000	000000	000000	000000


		1 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K28	00000	00000	00000	00000	00000	00000	00000
		1 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K38	00000	00000	00000	00000	00000	00000	00000
		1 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K24	00000	00000	00000	00000	00000	00000	00000
		2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K48	00000	00000	00000	00000	00000	00000	00000
		2 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K68	00000	00000	00000	00000	00000	00000	00000
		2 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K78	00000	00000	00000	00000	00000	00000	00000
		2 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K92	00000	00000	00000	00000	00000	00000	00000
		3"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K88	00000	00000	00000	00000	00000	00000	00000
		3 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K19	00000	00000	00000	00000	00000	00000	00000
		3 3/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K95	00000	00000	00000	00000	00000	00000	00000


		4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K29	00000	00000	00000	00000	00000	00000	00000
		4 1/4"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K37	00000	00000	00000	00000	00000	00000	000000
		4 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K39	00000	00000	00000	00000	00000	00000	000000
		5"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K49	00000	00000	00000	00000	00000	00000	000000
		5 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K69	00000	00000	00000	00000	00000	000000	000000
		6"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K79	00000	00000	00000	00000	00000	000000	000000
		6 1/2"	-0.015" to 0.015"	Ground	MIL-G-47033	Not Rated	445	Clear	8477K94	00000	00000	00000	00000	000000	000000	000000

Pressure-Rated Borosilicate Glass Discs

Commonly used as sight glass. Also called Pyrex and Schott glass, borosilicate glass resists clouding and pitting and is highly chemical and heat resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.

Tempered—Tempered glass is stronger than annealed glass.

							Temp.
	Dia.	Dia. Tolerance	Lg.	Lg. Tolerance	Edge Fabrication	Max. Pressure, psi	Min.	Max., ° F	Mil. Spec.	Color		Each
Annealed



		3 1/2"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	175	Not Rated	445	MIL-G-47033	Clear	8475K71	000000


		4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	150	Not Rated	445	MIL-G-47033	Clear	8475K72	00000
		4 1/2"	-0.015" to 0.015"	3/8"	-0.031" to 0.031"	Ground	35	Not Rated	445	MIL-G-47033	Clear	8475K39	000000
		5"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	100	Not Rated	445	MIL-G-47033	Clear	8475K42	000000
		6"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	75	Not Rated	445	MIL-G-47033	Clear	8475K43	000000
		6 3/4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	55	Not Rated	445	MIL-G-47033	Clear	8475K44	000000
		8 3/8"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	35	Not Rated	445	MIL-G-47033	Clear	8475K45	000000


		Tempered



				3 1/2"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	525	Not Rated	500	MIL-G-2860	Clear	8475K81	00000


				4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	450	Not Rated	500	MIL-G-2860	Clear	8475K82	00000
				4 1/2"	-0.015" to 0.015"	3/8"	-0.031" to 0.031"	Ground	100	Not Rated	500	MIL-G-2860	Clear	8475K83	000000
				5"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	300	Not Rated	500	MIL-G-2860	Clear	8475K84	000000
				6"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	225	Not Rated	500	MIL-G-2860	Clear	8475K63	000000
				6 3/4"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	180	Not Rated	500	MIL-G-2860	Clear	8475K64	000000
				8 3/8"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	105	Not Rated	500	MIL-G-2860	Clear	8475K65	000000
				9"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	95	Not Rated	500	MIL-G-2860	Clear	8475K66	000000
				10"	-0.015" to 0.015"	3/4"	-0.031" to 0.031"	Ground	85	Not Rated	500	MIL-G-2860	Clear	8475K67	000000