Quote for C491-2 with NSN 4820-00-191-6881 by Lockheed Martin Corporation (CAGE Code 81755)

Part Number:  C491-2
Alternate P/N:  C4912
Manufacturer:  lockheed martin corporation
Item Name :  valve safety relief
CAGE Code:  81755
INC Code:  05488
Country:  USA
NCB Code:  00
FSG:  48 Valves
Last Updated:  05-26-2025

We’re pleased to inform you that NSN part number C491-2 is now available in our ready-to-ship inventory. NSN part number C491-2 is a Valve Safety Relief with NSN 4820001916881 and manufactured by Lockheed Martin Corporation (CAGE Code 81755). We can get you one of the fastest and most competitive quotes on the market for NSN part number C491-2 in just 15 minutes. Are you interested? All you have to do is fill out the Request for Quote (RFQ) provided here.

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Disclaimer: This is a quotation for the goods listed above. This quotation is meant as an estimate and does not reflect a final bill or invoice. All quotations are subject to change until acceptance by ASAP Semiconductor of a binding Purchase Order, and quotations may be withdrawn or revised at the sole discretion of ASAP Semiconductor. This quotation is subject to the ASAP Semiconductor Terms & Conditions available at https://www.asapsemi.com/customer-terms-and-conditions/ . All United States Government and Department of Defense bids are quoted as CAGE code 6RE77 from ASAP Semiconductor’s Anaheim, California facility. Any quotation from ASAP Semiconductor without 6RE77 is void.

ASAP Supply Chain, owned and operated by ASAP Semiconductor, is a leading distributor of Lockheed Martin Corporation NSN parts and accessories in the United States. We have an inventory of more than 2 billion parts, new and obsolete, and shipping centers all across the United States, allowing us to get our customers the parts they need as soon as they need them. Our shipping center is located in Anaheim, California.

National Stock Numbers, or NSNs, are 13-digit serials assigned to all items that bought, stocked, and issued via the federal supply chain by the Defense Logistics Agency (DLA). Are you interested in learning more about NSN 4820-00-191-6881 or NSNs in general? Feel free to call us at our toll-free number, +1 (714) 705-4780, or email us at sales@asap-supplychain.com. And for a faster and more convenient purchasing solution, check out the ASAP Semiconductor App on Google Play or the App Store.

NSN Information for Part Number C491-2 with NSN 4820-00-191-6881, 4820001916881

NSNFSCNIINCLSHazmatDEMILCancelled NSN
4820-00-191-6881

Item PartTypeName:

VALVE,SAFETY RELIEF

48200019168810N
CIICHCCESDPMICCriticalityENAC
UA
Part NumberISCRNVCRNCCHCCMSDSSADC
C491-2227

Characteristics Data of NSN 4820-00-191-6881, 4820001916881

MRCCriteriaCharacteristic
AAJDTHREAD CLASS3A 1ST END
AAJFTHREAD DIRECTIONRIGHT-HAND 1ST END
ADQUFLOW CONTROL DEVICEDISK
ADSYVALVE DISCHARGE FLOW RATE200.0 CUBIC FEET PER MINUTE
AEHZMAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT SINGLE RESPONSE
AHNCCONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL BOSS) 1ST END
AQLRVALVE OPERATION METHODAUTOMATIC
AWLSCONNECTION TYPETHREADED EXTERNAL BOSS 1ST END
CBBLFEATURES PROVIDEDVALVE STEM LOCK SHIELD AND PRESSURE TIGHT OUTLET SIDE
CMLPTHREAD QUANTITY PER INCH12 1ST END
CQCYADJUSTABLE PRESSURE RANGE47.0 TO 53.0 POUNDS PER SQUARE INCH
CQGMMAXIMUM OPERATING PRESSURE60.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
CQJXNOMINAL THREAD SIZE1.312 INCHES 1ST END
CSDCOPENING PRESSURE SETTING50.0 POUNDS PER SQUARE INCH
CWFDNOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES 1ST END
MATTMATERIALALUMINUM ALLOY 2024 OVERALL
MDCLMATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,ALLOY2024 FED SPEC ALL MATERIAL RESPONSES OVERALL
MEDAMEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
SFTTSURFACE TREATMENTANODIZE
STDCSURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
STYLSTYLE DESIGNATORSTRAIGHT THRU
THSDTHREAD SERIES DESIGNATORUN 1ST END

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