Quote for A390 National Instruments Corporation Part with NSN 4820-00-268-8786

Part Number:  A390
NIIN:  2688786
Item Name :  valve check
CAGE Code:  03950
INC Code:  05487
Country:  USA
NCB Code:  00
FSG:  48 Valves
Last Updated:  02-17-2026

Are you looking quote for part A390? The National Instruments Corporation-manufactured component (CAGE Code: 03950) is documented under NSN 4820-00-268-8786 as Valve Check. For the fastest quote, please complete our RFQ form with details about A390. We guarantee a response within 15 minutes.

ASAP Components provides the verified A390, classified under INC 05487, FSG 48 Valves, FSC 4820 Valves Nonpowered, NIIN 00-268-8786, and NCB 00. Submit your requirements today to receive immediate pricing and availability information.

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NSN Information for Part Number A390 with NSN 4820-00-268-8786, 4820002688786

NSNFSCNIINCLSHazmatDEMILCancelled NSN
4820-00-268-8786

Item PartTypeName:

VALVE,CHECK

48200026887860N
CIICHCCESDPMICCriticalityENAC
U U
Part NumberISCRNVCRNCCHCCMSDSSADC
A39021CA

Characteristics Data of NSN 4820-00-268-8786, 4820002688786

MRCCriteriaCharacteristic
ADQUFLOW CONTROL DEVICEPOPPET
AECSBOLT HOLE QUANTITY6 ALL ENDS
AQLRVALVE OPERATION METHODAUTOMATIC
ARKNFLANGE SHAPEROUND WITH HOLES ALL ENDS
AWLSCONNECTION TYPEFLANGE ALL ENDS
BBJXMOUNTING POSITIONVERTICAL
CQGMMAXIMUM OPERATING PRESSURE100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CWCDNOMINAL OUTSIDE DIAMETER6.125 INCHES ALL ENDS
CWCKNOMINAL THICKNESS0.500 INCHES ALL ENDS
CWCLFIRST CONNECTION FACE TO CENTERLINE DISTANCE6.000 INCHES
CWCQBOLT HOLE NOMINAL DIAMETER0.562 INCHES ALL ENDS
CWCTBOLT CIRCLE NOMINAL DIAMETER5.000 INCHES ALL ENDS
CWDFFLANGE FACE DESIGNPLAIN ALL ENDS
FEATSPECIAL FEATURESBRONZE DISK,QQ-C-390,FACED W/NICKEL COPPER ALLOY,QQ-N-281 OR QQ-N-288 NOT LESS THAN 1/8 IN.THK
MATTMATERIALCOPPER ALLOY 903 BODY
MATTMATERIALCOPPER ALLOY 903 SEAT
MATTMATERIALNICKEL ALLOY OR COPPER ALLOY FLOW CONTROL DEVICE
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5/D/ FED SPEC SINGLE MATERIAL RESPONSE SEAT
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC 1ST MATERIAL RESPONSE AND QQ-N-281 FED SPEC 2ND MATERIAL RESPONSE AND QQ-N-288 FED SPEC 3RD MATERIAL RESPONSE FLOW CONTROL DEVICE
MEDAMEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDAMEDIA FOR WHICH DESIGNEDWATER,FRESH 2ND RESPONSE
STYLSTYLE DESIGNATORSTRAIGHT THRU
ZZZTNONDEFINITIVE SPEC/STD DATAB TYPE AND 1 CLASS

Schedule B & Trade

End Use : 21180 Industrial machines, other
Schedule B : 8481301010 (NAICS 332911) Check valves of copper having a pressure rating under 850 kpa
SITC : 74730 Check valves

Identification

CRITL The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
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 U - Precious metal content is unknown

NSN Management Codes

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

Freight Information

ACC: V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
ADC: A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LTL: W - Rating variable
NMFC: 051080 - Faucets, bibcocks, gates valves
SHC: 9 - Other or no special handling required (sh)
TCC: Z - No special type of cargo code applicable
WCC: 594 - Pumps and parts, (machinery and parts),(less than 35 feet)

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