Model: 1281-002-400

Check Valve

Properties:

Flow Control Device
Disk
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
End Application
Supply class aoe
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Position
Horizontal or vertical
Valve Size
4.000 inches
Maximum Operating Pressure
150.0 pounds per square inch single response
Opening Pressure Setting
100.0 pounds per square inch
Outside Diameter
7.688 inches all ends
Face To Face Distance
11.750 inches
Thickness
0.500 inches all ends
Bolt Hole Diameter
0.562 inches all ends
Bolt Circle Diameter
6.562 inches all ends
Flange Face Design
Plain all ends
Material
Copper alloy body
Material
Nickel alloy seat
Material
Nickel alloy flow control device
Material Specification
Astmb61 assn standard single material response body
Material Specification
Qq-n-288 federal specification single material response flow control device
Material Specification
Qq-n-288 federal specification single material response seat
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through flanged ends
Specification Data
81349-mil-v-17547 government specification
Nondefinitive Specification/std Data
A type and 1 class
NSN
4820-01-417-5913
Part Number
1281-002-400
Description
Valve,check
CAGE
76364

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 1281-002-400 NSN 4820-01-417-5913

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
49.7000lbs
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:
127200
UFC:
64480
LTL:
85.0
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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