Valve Check Parts Listing Under NSN 4820-00-005-4903

When you need superior quality NSN 4820-00-005-4903 parts and components, contact the experts at Integrated Aviation Hardware. Here, you can find the items listed with the NSN 4820-00-005-4903, including part numbers 493-12B2-5, 493 12B2 5, and many others, that are in stock and ready for purchase at any time. Browse our various part lists at your leisure and take note of any items of interest. When you are ready, we invite you to take advantage of our Instant RFQ service which will allow you to request competitive quotes on any featured products. Within 15 minutes of receiving and reviewing a completed Request for Quote (RFQ) form for NSN 4820-00-005-4903, a dedicated representative will reach out with a customized solution that keeps your unique parameters in mind. For additional questions, call or email us directly; we are available around the clock!

Item Name Valve Check
Federal Supply Class (FSC) 4820 Valves Nonpowered
National Item Identification Number (NIIN) 00-005-4903 (000054903)
NCB Code USA (00)

Technical Characteristics of NSN 4820000054903

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3A ALL ENDS
AAJFTHREAD DIRECTIONRIGHT-HAND ALL ENDS
ADQUFLOW CONTROL DEVICEPOPPET
ADSUDISK LOADING METHODSPRING
AEHZMAXIMUM OPERATING TEMP-65.0 DEG FAHRENHEIT 2ND RESPONSE
AEHZMAXIMUM OPERATING TEMP225.0 DEG FAHRENHEIT 1ST RESPONSE
AHNCCONNECTION STYLEGASKET SEAL (BOSS) ALL ENDS
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED INTERNAL BOSS ALL ENDS
BBJXMOUNTING POSITIONHORIZONTAL
CQGMMAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CQJXNOMINAL THREAD SIZE1.062 INCHES ALL ENDS
CWFDNOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES ALL ENDS
FEATSPECIAL FEATURESVALVE CRACKING PRESSURE 5 PSI
MATTMATERIALCOPPER ALLOY 360 BODY OR COPPER ALLOY BODY
MATTMATERIALRUBBER SYNTHETIC PACKING OR RUBBER PACKING
MATTMATERIALRUBBER SYNTHETIC SEAT
MATTMATERIALSTEEL COMP 303 FLOW CONTROL DEVICE AND STEEL COMP 304 FLOW CONTROL DEVICE
MDCLMATERIAL DOCUMENT AND CLASSIFICATION66,AISI 303/SAE 30303 FED STD 1ST MATERIAL RESPONSE FLOW CONTROL DEVICE AND 66,AISI 304/SAE 30304 FED STD 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-1149 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-676 MIL SPEC SINGLE MATERIAL RESPONSE BODY
MEDAMEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDAMEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON 2ND RESPONSE
STYLSTYLE DESIGNATORSTRAIGHT THRU
THSDTHREAD SERIES DESIGNATORUNJF ALL ENDS

  Relevant Components for NSN - 4820-00-005-4903, 4820000054903

4810-00-001-4499 (4810000014499) 4810-00-001-4611 (4810000014611) 4810-00-001-6321 (4810000016321) 4810-00-001-6587 (4810000016587)
4810-00-001-6588 (4810000016588) 4810-00-001-6589 (4810000016589) 4810-00-001-6605 (4810000016605) 4810-00-001-6872 (4810000016872)
4810-00-001-6873 (4810000016873) 4810-00-001-7848 (4810000017848) 4810-00-001-9471 (4810000019471) 4810-00-001-9472 (4810000019472)

Submit a Quote and We'll Get Back to You Shortly

Guaranteed quotes back within 15 minutes, 24/7 x 365

Semiconductor's Certifications and Memberships

The only independent
distributor with a
NO CHINA SOURCING Pledge
  • All Orders are fulfilled in the U.S.A.
  • All shipments must comply with U.S.A export laws.
  • No exceptions.

“We Proudly Support Intrepid Fallen Heroes Fund that serves United States Military Personal experiencing the Invisible Wounds of War : Traumatic Brain Injury (TBI) and Post Traumatic Stress (PTS). Please visit website (www.fallenheroesfund.org ) and help in their valiant effort”.

Thank You for Visiting.

We Hope that You Will Visit Us Again the Next Time You Need NSN Parts and Make Us Your Strategic Purchasing Partner.

Request for Quote