Recently Updated NSN 4820-00-268-8778 Or (4820002688778) Part List

Item Name Valve Check
Federal Supply Group (FSG) Valves
Federal Supply Class (FSC) 4820 Valves Nonpowered
National Item Identification Number (NIIN) 00-268-8778 (002688778)
NCB Code USA (00)
Manufacturer Manufacturers Standardization So, Federal Specifications, The Walworth Company
Part Number Manufacturer Item Name RFQ
MSS SP-80 manufacturers standardization so valve check RFQ
WWV51 federal specifications valve check RFQ
3412 3 4IN the walworth company valve check RFQ
TYPE 4 CLASS B 3 4 IN manufacturers standardization so valve check RFQ

Technical Characteristics of NSN 4820002688778

MRCCriteriaCharacteristic
AAARNOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES 1ST END
AAJFTHREAD DIRECTIONRIGHT-HAND ALL ENDS
ADQUFLOW CONTROL DEVICEDISK
AEHZMAXIMUM OPERATING TEMP150.0 DEG FAHRENHEIT SINGLE RESPONSE
AHNCCONNECTION STYLEPLAIN,OPTIONAL END (PIPE) ALL ENDS
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
BBJXMOUNTING POSITIONHORIZONTAL OR VERTICAL
CQGMMAXIMUM OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH 1ST RESPONSE
CQGMMAXIMUM OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH 2ND RESPONSE
CQJXNOMINAL THREAD SIZE0.750 INCHES ALL ENDS
MATTMATERIALCOPPER ALLOY BODY
MATTMATERIALCOPPER ALLOY SEAT
MEDAMEDIA FOR WHICH DESIGNEDSTEAM 1ST RESPONSE
MEDAMEDIA FOR WHICH DESIGNEDWATER-OIL-GAS 2ND RESPONSE
STYLSTYLE DESIGNATORSTRAIGHT THRU
THSDTHREAD SERIES DESIGNATORNPT ALL ENDS
ZZZTNONDEFINITIVE SPEC/STD DATA4 TYPE AND B CLASS AND 3/4 SIZE

Relevant Components for NSN - 4820-00-268-8778, 4820002688778
4810-01-693-0546 (4810016930546) 4810-01-224-8636 (4810012248636) 4810-00-181-8826 (4810001818826) 4810-00-533-2538 (4810005332538)
4820-01-319-3454 (4820013193454) 4820-01-154-9733 (4820011549733) 4810-01-176-9496 (4810011769496) 4820-01-278-5449 (4820012785449)
4810-01-152-7681 (4810011527681) 4810-00-127-2787 (4810001272787) 4820-00-557-7800 (4820005577800) 4810-01-469-1460 (4810014691460)

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