NSN 4820-01-257-1495

Gaseou Pressure Equalizing Valve
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
012571495

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Inventory

 

This product may be available in the following quantities and conditions.

  • NS: 1

Please note that inventory for this NSN was updated 12/31/2024 and may have changed since then. Request a quote for up to date pricing and availability.

Product Definition Definition of approved item name (AIN): "VALVE,PRESSURE EQUALIZING,GASEOU"

A valve consisting of a single deadweight loaded disk, or two deadweight loaded disks each with a seperate seat. It is specifically designed for the relief of small pressure and vacuum conditions within a tank or other container to or from the atmosphere. The center of a single deadweight loaded disk may contain a spring loaded disk forming an additional seat or aperture. It may be spring loaded and/or equipped with a manual unloader on either the pressure or vacuum side. Exclude valve, vacuum breaking.

4820-01-257-1495 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAFZ
Body Material
Aluminum alloy
MRC:
AAJJ
Maximum Operating Pressure
Not rated
MRC:
AAQL
Body Style
Single connection, straight flow
MRC:
ABJH
Tempurature Rating
160.0 degrees fahrenheit
MRC:
ACKL
Media For Which Designed
Nitrogen, gaseous err-100 err-100
MRC:
ACKM
First End Connection Type
Threaded external tube
MRC:
ACKN
First End Style Designator
Plain
MRC:
ACLH
First End Outside Diameter Tube Accommodated
2.050 inches
MRC:
ACLJ
First End Thread Size And Series/type Designator
2.000-18 uns
MRC:
ACLK
First End Thread Class
2a
MRC:
ACLL
First End Thread Direction
Right-hand
MRC:
ADQU
Flow Control Device
Any acceptable
MRC:
ADQZ
End Connection Quantity
1
MRC:
AFLE
Valve Venting Design Type
Atmospheric
MRC:
AFLF
Valve Relief Design Type
Pressure and vacuum

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
TA770-50C-50C-R
Cage Code:
08992
RNCC:
3
RNVC:
2
DAC:
E
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
11450540-1
Cage Code:
18876
RNCC:
5
RNVC:
2
DAC:
E
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
11450540
Cage Code:
18876
RNCC:
D
RNVC:
9
DAC:
A
RNAAC:
AX
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10958
FIIG:
A07100
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Special material and handling

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
ADPE:
CRITL:
X
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) A

Item does not contain precious metal.

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Import and Export

Schedule B
NAIC
End Use
SITC
USDA
HITECH
Schedule B:
8481809050
NAICS:
332911
End Use Class:
21180
SITC:
74780
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481809050

Other Taps, Cocks, Valves, Etc., Nesoi

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74780

Taps, Cocks, Valves and Similar Appliances, N.e.s.

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
051080
NMF Description:
Gates Valves Bibcocks Faucets
UFC:
29300
LTL:
Rating variable
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 Forecast / History

Maritime Supply Chain
09/2017
7.00