Safety Relief Valve

NSN: 4820-01-656-3373 | Model: SS-4R3A-SETH

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.

NSN Properties and Flags

NATO Stock Number

4820-01-656-3373

DEMIL

Bonnet Type

Inside spring

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

End Application

2566-01-633-8373

Connection Type

Threaded internal tube 2nd end

Valve Size

0.25 inches

Adjustable Pressure Range

+5000.00 to 6000.00 pounds per square inch

First Connection Face To Centerline Distance

1.60 inches

Second Connection Face To Centerline Distance

1.44 inches

Part Name Assigned By Controlling Agency

Proportional relief valve

Material

Steel comp 316 stem

Material Specification

Astm a479 assn standard single material response stem

Style Designator

Angle

Parts List for Dew Point Indicator

Other components in the assembly of NSN 6625-01-633-8373

Electrical Cap
NSN 5999-01-655-6888
Metallic Hose Assembly
NSN 4720-01-656-2465
Safety Relief Valve
NSN 4820-01-656-3373

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

NSN 4820-01-656-3373 Datasheet

Supply Class (FSC):

Nonpowered Valves

Cross Reference:

SS-4R3A-SETH
255-1531

Cage Codes:

Cambridge Valve & Fitting Inc (CAGE 9Y805)
Kahn Instruments, Incorporated (CAGE 0AFZ6)

Freight Information:

NMFC:

127220 - Pressure reg/red/relief valves noi
WCC:

594 - Pumps and parts, (machinery and parts),(less than 35 feet)
SHC:

9 - Other or no special handling required (sh)
ADC:

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL:

P - 77.5
ACC:

V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
TCC:

Z - No special type of cargo code applicable

NSN Management Codes:

SOS
Sms
AAC
J
Quantity per pack
1
Unit of Measure
Ea
Shelf Life
N/A
Classification Control
U
MGMT_CTL
9b-----
Repariability

Questions & Answers:
What are the historical prices recorded for this stock number?
Historical data shows pricing from $2,587.59 to $4,312.64..
Does NSN 4820-01-656-3373 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 4820-01-656-3373?
016563373 or 01-656-3373
Does NSN 4820-01-656-3373 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-01-656-3373?
No solicitations for this NSN.