NSN 4820-01-221-1587 NIIN 012211587 — Safety Relief Valve

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NSN
Item Name
Assigned
DEMIL
Shelf Life
UOM
Using Services
NSN:
4820-01-221-1587
4820012211587
Description:
VALVE,SAFETY RELIEF
NSN Assigned:
24-NOV-85
DEMIL:
NO
Shelf Life:
N/A
UOM:
1 EA
Using Services:
Navy

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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
  •   Customer service objectives
  •   Every product 100% inspected
AS9120 Certified by SAI Global

4820-01-221-1587 Specification Set by the OEM (see RNCC code 3)

Thread Direction AAJF:

RIGHT-Hand 1st end

Flow Control Device ADQU:

poppet

Maximum Operating Temp AEHZ:

250.0 deg fahrenheit 2nd response

Connection Style AHNC:

G46B plain (pipe) 1st end

Valve Operation Method AQLR:

automatic

Connection Type AWLS:

threaded external pipe 1st end

Adjustable Pressure Range CQCY:

+29.0 to 72.0 pounds per square inch

Maximum Operating Pressure CQGM:

200.0 pounds per square inch single response

Nominal Thread Size CQJX:

0.375in. 1st end ⁓1/64"

Opening Pressure Setting CSDC:

50.0 pounds per square inch

Material MATT:

steel comp 316 body

Media For Which Designed MEDA:

hydrogen 5th response

Style Designator STYL:

C4 straight thru

Thread Series Designator THSD:

npt 1st end

Furnished Items And Quantity TMQY:

1 deflector cap

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:
D559T1-3M-50
Cage Code:
91816
RNCC:
3
RNVC:
2
DAC:
6
RNAAC:
AX
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.

4820-01-221-1587 Material Hazmat, Precious Metals, Criticality, Enviroment, and ESD

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.

  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.

Material Management Material categorization and source of supply

SOS
SMIC
MMAC
MCC
SOS:
SMS
SOS:
MMAC:
MCC:
Source of Supply (SOS) SMS

Defense logistics agency, enterprise business systems

  Material Codes

SOS: Source of Supply. A three position code or routing identifier code (ric), which identifies the source of supply activity.

SMIC: Special Material Indicator Code. A two position code, which categorizes material on the basis of requirements for source or quality control, technical design or configuration control, procurement, stocking and issue control, special receipt, inspection, testing, storage, or handling.

MMAC: Material Management Aggregation Code. A two position code that identifies an item of supply to be managed by a specific activity manager.

MCC: Material Echelon Code. A two position code employed by the marine corps in classifying items into categories by materiel category and procurement echelon. the alphanumeric management code is in the first position and identifies the materiel category

IMC: Denotes wether items shall be subjected to integrated management under the defense supply agency or retained by the individual military service or other department of defense components for their management. Assigned by th activity responsible for item management coding.