4820-01-493-7731

Safety Relief Valve email this page

Model or part number: 11.1099.009

Pricing & Availability

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About this product
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.

Description

Velocity Fuse NSN 4820-01-493-7731.

pdf NSN 4820-01-493-7731 Datasheet

MRC:
A measurement of the pipe size the item will accommodate.AAAR
Pipe Size Accommodated:
0.500 inches all ends
MRC:
The part that controls the flow through the item.ADQU
Flow Control Device:
Disk
MRC:
Indicates the type of housing on the item that accommodates the stem packing or spring.ADSR
Bonnet Type:
Inside screw
MRC:
The means by which the bonnet is attached to the item.ADST
Bonnet Attachment Method:
Pressure seal, ring type
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
W/s la class ssn (688)
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
G46b plain (pipe) all ends
MRC:
The means used to control the operation of the valve.AQLR
Valve Operation Method:
Automatic
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded external pipe all ends
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
4000.0 pounds per square inch single response
MRC:
The name assigned to the item by the government agency or commercial organization controlling the design of the item.CXCY
Product Name:
Model no 83s44-4/spl; set pressure: 20-4000 psig; mil-v-24322 grade a; service: liquid relief; conn: 1/2 in union
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Stainless steel body
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Nitrile 50 duro mfr ref single material response seat
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Liquid single response
MRC:
Test conditions and ratings,or environmental and performance requirements that are different,more critical,or more specific than those specified in a governing test data document.SPCL
Special Test Features:
Hi shock approval by extension supship groton, ct ltr ser 230e/5248 dated oct 9 1996
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Err-090
MRC:
The name and number of those parts furnished with the item of supply that have not been specified elsewhere.TMQY
Furnished Items And Quantity:
1 lever and 1 locking device
MRC:
--
NIIN:
014937731
MRC:
--
NATO Stock Number:
4820-01-493-7731
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A046B0
MRC:
--
INC:
05488
MRC:
--
IMM:
AX
Certified products icon

All Products Certified

Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

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Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Formal Definition

Government issue definition of NSN 4820-01-493-7731

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.

Recent Solicitations Most recent solicitations for NSN 4820-01-493-7731

End Date
Solicitation
Qty
Purchase Request
End Date:
2024-05-13
Solicitation:
SPE7M024T6458
Qty:
3
Purchase Request:
7007408578
End Date:
2023-10-16
Solicitation:
SPE7MC24T0053
Qty:
2
Purchase Request:
7004771746
End Date:
2023-07-17
Solicitation:
SPE7M023T8475
Qty:
2
Purchase Request:
7003513376
End Date:
2023-02-24
Solicitation:
SPE7MC23T6294
Qty:
6
Purchase Request:
0095652451
End Date:
2022-11-07
Solicitation:
SPE7MC23T1355
Qty:
1
Purchase Request:
7000224740
End Date:
2022-10-24
Solicitation:
SPE7MC23T0607
Qty:
3
Purchase Request:
7000066861
End Date:
2022-09-12
Solicitation:
SPE7MC22T432M
Qty:
1
Purchase Request:
0095652451
End Date:
2022-07-18
Solicitation:
SPE7MC22T287T
Qty:
1
Purchase Request:
0095001513
End Date:
2018-10-01
Solicitation:
SPE7MC18T228T
Qty:
1
Purchase Request:
0076392402
End Date:
2018-06-25
Solicitation:
SPE7MC18T052H
Qty:
1
Purchase Request:
0074915669

Packaging & Dimensions

MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx
Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q
LVL_C:
CUSH
MOP
CATEG.
PRES MAT
WRAP MAT
ICQ
THK
TOS
UCL
CUSH DUN:
XX
MOP:
AE
PKG:
16Z0
PRES MAT:
00
WRAP MAT:
XX
ICQ:
AAA
THK:
X
TOS:
UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) AE

Seal or plug all openings and preserve by method 10.

Preservation Material (PRES_MAT) 00

No requirement.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
USDA
HITECH
Schedule B:
8481400000
NAICS:
332911
End Use Class:
21180
SITC:
74740
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481400000

Safety Or Relief Valves

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74740

Safety Or Relief Valves

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
127220
NMF Description:
Pressure Reg/red/relief Valves Noi
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ADC:
A
ACC:
V

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 594

Pumps and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) V

Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

DLA History / Forecast Quantities

Maritime Supply Chain
03/1609/19
3.001.00

Manufacturers

This NSN is registered to the following cage codes.
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