Model: FF91-XXX-20-60

Check Valve

Properties:

Thread Class
2a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
Plain (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
12 all ends
Maximum Operating Pressure
6000.0 pounds per square inch single response
Thread Size
2.750 inches all ends
Opening Pressure Setting
60.0 pounds per square inch
Material
Rubber fluorocarbon class fpm packing
Material
Rubber fluorocarbon class fpm seat
Material
Steel comp 303 body
Material
Steel flow control device
Material Specification
Ams-5640, ty i assn standard single material response body
Material Specification
Mil-r-83248, ty i, cl i military specification single material response packing
Material Specification
Mil-r-83248, ty i, cl i military specification single material response seat
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight thru
Thread Series Designator
Un all ends
NSN
4820-01-342-8633
Part Number
FF91-XXX-20-60
Description
Valve,check
CAGE
77842

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part FF91-XXX-20-60 NSN 4820-01-342-8633

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
1
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

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

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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