Model: 11.1099

Safety Relief Valve

Special Features:

This valve is not for seawater applications. Both union end connections: outlet threads 1.062-12 un-3a, inlet threads not given on dwg. For nuclear applications see 4820-01-451-7717.

Properties:

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Pressure seal, ring type
Disk Loading Method
Spring
End Application
W/s la class ssn (688)
Connection Style
G46b plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Maximum Operating Pressure
4000.0 pounds per square inch single response
Part Name Assigned By Controlling Agency
Model no 83s44-4/spl; set pressure: 20-4000 psig; mil-v-24322 grade a; service: liquid relief; conn: 1/2 in union
Material
Rubber butadiene-acrylonitrile class nbr seat
Material
Steel comp 410 flow control device
Material
Steel comp 410 stem
Material
Stainless steel body
Material Specification
Astm a479 comp 410 cond a assn standard single material response flow control device
Material Specification
Astm a479 comp 410 cond a assn standard single material response stem
Material Specification
Astm b351-cf3m assn standard single material response body
Material Specification
Nitrile 50 duro mfr ref single material response seat
Media For Which Designed
Liquid single response
Special Test Features
Hi shock approval by extension supship groton, ct ltr ser 230e/5248 dated oct 9 1996
Furnished Items And Quantity
1 lever and 1 locking device
NSN
4820-01-493-7731
Part Number
11.1099
Description
Valve,safety Relief
CAGE
15187

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Part 11.1099 NSN 4820-01-493-7731

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
--
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: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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