Model: B-1221-A 2.50IN

Stop-check Valve

Special Features:

Material copper alloy 865

Properties:

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Bolt Hole Quantity
4 all ends
Valve Operation Method
Manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal
Valve Size
2.500 inches
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
7.000 inches all ends
Face To Face Distance
8.000 inches
Thickness
0.562 inches all ends
Bolt Hole Diameter
0.750 inches all ends
Bolt Circle Diameter
5.500 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy stem
Material
Copper alloy 836 flow control device or copper alloy 922 flow control device
Material Specification
Astm b147 alloy 8a assn standard single material response stem
Material Specification
Astm b62 assn standard 1st material response flow control device or astm b61 assn standard 2nd material response flow control device
Media For Which Designed
Steam 1st response
Media For Which Designed
Water-oil-gas 2nd response
Style Designator
Straight through flanged ends
Supplementary Features
This item has been reviewed for asbestos material. The current approved sources 30263 have indicated their part number contained asbestos prior to 1984. They continue to manufacture the same part number without asbestos material after 1984
Furnished Items And Quantity
1 handwheel
NSN
4820-01-260-6973
Part Number
B-1221-A 2.50IN
Description
Valve,stop-check
CAGE

Part B-1221-A 2.50IN NSN 4820-01-260-6973

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
43.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this stop-check valve (NSN 4820-01-260-6973) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
Highest Rated Parts
Recently Purchased Parts
Hot Parts