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Figure NBG (R & SS)
PIPING PRODUCTS
NUT, BOLT, GASKET KIT
RED RUBBER & STAINLESS STEEL
Features
• For ANSI 150# Flanges
• Lengths for Joining Two Flanges*
• Red Rubber (Styrene-Butadiene or SBR) Gasket
• 304 & 316 Stainless Steel Hardware
• Hardware Finish: Material Finish
• Sizes: 3” to 16”
Standards
• Gaskets
○ Meets ASME B16.21 for 150# Gaskets
○ Dimensions: ASME B16.5
• Cap Screws
○ Material - ASTM F593 Grp 1 (304) or 2 (316)
○ Heat Treatment: Condition CW
○ Dimensions - ASME B18.2.1
○ Thread - Class 2A
• Nuts
○ Material - ASTM F594 Grp 1 (304) or 2 (316)
○ Dimensions - ASME B18.2.2
○ Thread - Class 2B
Properties**
• Gaskets
○ Max. Temperature: 170°F (77°C)
○ Min. Temperature: -20°F (-29°C)
○ Max. Pressure: 200 PSIG (13.8 Bar)
○ Max Pressure x Temperature (PxT) - 20,000 (°F x PSIG)
○ Durometer Hardness: 75 Shore A±5
○ Tensile: 400 PSI
○ Elongation: 150%
○ Compression Set (22 Hrs @ 158°F): 35%
○ Heat Aging (94 Hrs @ 158°F):
○ Change in Hardness: +5 Shore A
○ Change in Tensile: -15%
○ Change in Elongation: -35%
○ Finish: Smooth
• Cap Screws
○ Tensile - 100 to 150 KSI (5/8”), 85 to 140 KSI (3/4” to 1”)
○ Hardness - B95 to C32 (5/8”), B80 to C32 (3/4” to 1”)
○ Yield - 65 KSI (5/8”), 45 KSI (3/4” to 1”)
* Based on 1/16” raised face and 1/8” gasket
** Gasket properties and application parameters shown on this
data sheet are typical. Failure to select proper sealing products
could result in property damage and/or serious personal injury.
Part Numbers, Quantities & Screw Sizes (inch)
Size
Part Number
304 Stainless 316 Stainless
3 FNWNBGS41RF8M FNWNBGS61RF8M 4 5/8-11 3
4 FNWNBGS41RF8P FNWNBGS61RF8P 8 5/8-11 3
6 FNWNBGS41RF8U FNWNBGS61RF8U 8 3/4-10 3-1/4
8 FNWNBGS41RF8X FNWNBGS61RF8X 8 3/4-10 3-1/2
10 FNWNBGS41RF810 FNWNBGS61RF810 12 7/8-9 4
12 FNWNBGS41RF812 FNWNBGS61RF812 12 7/8-9 4
14 FNWNBGS41RF814 FNWNBGS61RF814 12 1-8 4-1/2
16 FNWNBGS41RF816 FNWNBGS61RF816 16 1-8 4-1/2
Nut/
Screw
Qty
Diameter
Bolt
Length
DOC: FNWNBG-R-SS13 Ver. 4/2014
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The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as
warranties or guarantees, expressed or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and
conditions, which are available on request. We reserve the right to modify or improve the designs or specications of our products at any time without notice. Always
verify that you have the most recent product specications or other documentation prior to the installation of these products.
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