Secure Ordering: +1 (757) 528-8028
NationalStockNumber.info
NationalStockNumber.INFO

Worldwide distributor of NSN parts and consumables located in the USA.

Safety Relief Valve

NSN: 4820-01-538-2850 | Model: MIL-V-20065

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
4820-01-538-2850
DEMIL
NO
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
8 all ends
Maximum Operating Temp
425.0 degrees fahrenheit single response
End Application
W/s cvn nr boundary area
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Features Provided
Manual override
Valve Size
3.500 inches
Adjustable Pressure Range
+11.0/+17.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Outside Diameter
7.188 inches all ends
Thickness
0.500 inches all ends
First Connection Face To Centerline Distance
7.250 inches
Bolt Hole Diameter
0.562 inches all ends
Second Connection Face To Centerline Distance
5.500 inches
Bolt Circle Diameter
6.062 inches all ends
Flange Face Design
Plain all ends
Special Features
Flanges iaw mil-f-20042, 150 lb.
Material
Nickel alloy seat
Material Specification
Qq-b-637 comp i federal specification single material response stem
Media For Which Designed
Water, fresh single response
Style Designator
Err-090
Test Data Document
Mil-s-901c specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Furnished Items And Quantity
1 lever
Specification Data
81349 - mil-v-20065c government specification
Nondefinitive Specification/std Data
A-1 type and c class
Departure From Cited Document
Relief valve

Parts List for Safety Relief Valve  

Other components in the assembly of NSN 4820-01-538-2850

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.

Qty:
Email Address:
Phone Number:
Your name:
Company:
Privacy    Terms

Certified Quality Assurance  Quality check icon

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

NSN 4820-01-538-2850 Datasheet

Supply Class (FSC):
Nonpowered Valves
Cross Reference:
  • MIL-V-20065
  • NMP611 OP A, DISC AY, FW SERVICE
  • L-2210-C 3.5" 11TO17PSI
  • NMP611
Cage Codes:
  • Military Specifications (CAGE 81349)
  • Pentair Valves & Controls Us Lp (CAGE 15187)
Schedule B & Trade:
  • Schedule B: 8481400000 (NAICS 332911)

    Safety or relief valves

  • SITC: 74740

    Safety or relief valves

  • End Use: 21180

    Industrial machines, other

Identification:
HMIC

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

PMIC

A - Item does not contain precious metal.

ADPE

- Represents items with no adp components

CRITL

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

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
    Y
  • Quantity per pack
    1
  • Unit of Measure
    Ea
  • Shelf Life
    N/A
  • Classification Control
    U
  • MGMT_CTL
    3b-----
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $9,655.41 to $16,092.34..
Does NSN 4820-01-538-2850 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 4820-01-538-2850?
015382850 or 01-538-2850
Does NSN 4820-01-538-2850 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 4820-01-538-2850?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Mar 16, 2006