NSN 4820-00-973-9100 NIIN 009739100 — Safety Relief Valve

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NSN
Item Name
Assigned
DEMIL
Shelf Life
UOM
Using Services
NSN:
4820-00-973-9100
4820009739100
Description:
VALVE,SAFETY RELIEF
NSN Assigned:
01-JAN-62
DEMIL:
NO
Shelf Life:
N/A
UOM:
--
Using Services:
--

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Quality Commitment

Serving our customers with quality and safety first.

  •   AS9120 Certified
  •   Audited supply chain
  •   ITAR Registered
  •   DDTC Registered
  •   HAZMAT Certified
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  •   Every product 100% inspected
AS9120 Certified by SAI Global

4820-00-973-9100 Specification Set by the OEM (see RNCC code 3)

Nominal Pipe Size Accommodated AAAR:

1.000in. 1st end

Thread Direction AAJF:

RIGHT-Hand 1st end

Flow Control Device ADQU:

poppet

Bonnet Type ADSR:

inside spring

Bonnet Attachment Method ADST:

threaded

Disk Loading Method ADSU:

spring

Valve Discharge Flow Rate ADSY:

24.8 gallons per minute

Maximum Operating Temp AEHZ:

200.0 deg fahrenheit single response

Connection Style AHNC:

G9 plain, optional end (pipe) 1st end

Valve Operation Method AQLR:

automatic

Connection Type AWLS:

threaded internal pipe 1st end

Features Provided CBBL:

bonnet packing and pressure tight outlet side

Thread Quantity Per Inch CMLP:

14 2nd end

Maximum Operating Pressure CQGM:

2000.0 pounds per square inch single response

Nominal Thread Size CQJX:

1.000in. 1st end ⁓1/64"

Opening Pressure Setting CSDC:

525.0 pounds per square inch

Material MATT:

steel corrosion resisting stem

Media For Which Designed MEDA:

WATER-OIL-Gas single response

Style Designator STYL:

Thread Series Designator THSD:

npt 1st end

Reference Number Differentiating Characteristics ZZZY:

as differentiated by method of operation, pressure setting and size of valve

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:
1975C
Cage Code:
16497
RNCC:
3
RNVC:
1
DAC:
X
RNAAC:
XX
Status:
A
MSDS:
SADC:

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

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Definition Definition of approved item name (AIN): "VALVE,SAFETY RELIEF"

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.

4820-00-973-9100 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
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) U

Precious metal content is unknown

Criticality X

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

  Identification Codes

HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.

PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.

ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.

ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.

CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.