Model: N-498

Fluid Pressure Regulating Valve

Special Features:

Ends w/o brazing rings installed

Properties:

Body Material
Any acceptable
Body Style
Straight thru
Stem Material
Any acceptable
Media For Which Designed
Water, fresh and water, salt
First End Connection Type
Unthreaded internal pipe
First End Style Designator
Streamlined with one brazing ring
First End Pipe Size Accommodated
1.250 inches
Second End Relationship With First End
Identical
Seat Material
Any acceptable
Packing Material
Any acceptable
Flow Control Device
Diaphragm
Flow Control Device Material
Any acceptable
End Connection Quantity
2
Renewable Seat Ring Type
Threaded
Outlet Pressure Range
+25.0/+60.0 pounds per square inch
Outlet Pressure Range
+25.0 to 60.0 pounds per square inch
Regulation Type
Automatic double stage
Regulation Type
Automatic double stageautomatic double stage
Valve Stem Design
Single seat
Valve Loading Method
Spring
Maximum Inlet Pressure Rating
150.0 pounds per square inch
Outlet Pressure Accuracy Rating
Not rated
Filter
Not included
Tempurature Rating
165.0 degrees fahrenheit
Special Test Features
High-impact shock tests are required as directed in paragraphs 3.6 and 4.4.2.3 of mil-v-2042
Test Data Document
81349-milv2042 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Test Data Document
81349-milv2042 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).81349-milv2042 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Nondefinitive Specification/std Data
2 type
Nondefinitive Specification/std Data
2 type2 type
NSN
4820-00-181-8912
Part Number
N-498
Description
Valve,regulating,fluid Pressure
CAGE
35795

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

Part N-498 NSN 4820-00-181-8912

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
27565
FIIG:
A21100
Concept No.:
1
App. Key:
D
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:
18.0 X 10.0 X 8.0
Paclk Weight:
31.0000lbs
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:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481809015
  • SITC: 74780
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level

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