NSN 4820-01-058-7171 NIIN — Check Valve

National Stock number : 4820-01-058-7171

Check Valve


Available Quantity 17
Available Conditions NE SV OH AR NS
Classification Nonpowered Valves - FSC 4820
Stock Check Date 10/08/2025
Part-Number.info Quality System
  •   ISO 9001:2015 + AS9120B Certifed
  •   Audited supply chain
  •   Counterfeit Parts Prevention
  •   100% Product Inspections
  •   7 Year Record Retention
  •   HAZMAT Certified
  •   ITAR and DDTC Registered
AS9120 Certified Supplier

Product Properties


Description

Check Valve

Flow Control Device

poppet

Disk Loading Method

spring

Renewable Seat Ring Type

PRESSED-In

Valve Operation Method

automatic

Mounting Position

vertical

Criticality Code Justification

feat and spcl

Special Features

valve shall flow 29 lbs per minute with 14 psig max pressure drop, valve opening pressure shall not exceed 5.0 psig and shall be fully closed /zero leakage/ at 3.0 psig whenactuated in the closing direction

Special Test Features

orient valve with large end down and apply test pressure to small end of valve using MIL-L-7808 oil at 180 deg f /or equivalent/ for all test conditions

Pricing and Availability Quote

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National Stock Number
4820-01-058-7171
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