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PartsTable / COMPONENT / 603962-21
603962-21 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The VALVE ASSEMBLY,LIFERAFT is a the manufacturer industrial component. Key specifications include special_features: FLIGHT SAFETY CRITICAL, criticality_code_justification: FEAT, general_characteristics_item_description: BRASS,QQ-B-626,COMP 22; O/A LG 3.750 IN.; O/A H 2.562 IN.; INCLUDES PLUG IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4220-00-370-4178, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
603962-21
NSN: 4220-00-370-4178
FSC: 4220
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
special_featuresFLIGHT SAFETY CRITICAL
criticality_code_justificationFEAT
general_characteristics_item_descriptionBRASS,QQ-B-626,COMP 22; O/A LG 3.750 IN.; O/A H 2.562 IN.; INCLUDES PLUG IN
NSN4220-00-370-4178
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE ASSEMBLY,LIFERAFT TITLE COMPONENT PN 603962-21 MFR VALVE ASSEMBLY,LIFERAF
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: BRASS,QQ-B-626,COMP 22; O/A LG 3.750 IN.; O/A H 2.562 IN.; INCLUDES PLUG IN
TECHNICAL CHARACTERISTICS (FLIS)
CRITICALITY CODE JUSTIFICATIONFEAT
GENERAL CHARACTERISTICS ITEM DESCRIPTIONBRASS,QQ-B-626,COMP 22; O/A LG 3.750 IN.; O/A H 2.562 IN.; INCLUDES PLUG IN
SPECIAL FEATURESFLIGHT SAFETY CRITICAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
63A120H1-30Interchangeable
interchangeable cross-reference
interchangeable
B-79WITHB-79-3RInterchangeable
interchangeable cross-reference
interchangeable
NAF603962-22Interchangeable
interchangeable cross-reference
interchangeable
63A120H1-102Interchangeable
interchangeable cross-reference
interchangeable
870717Interchangeable
interchangeable cross-reference
interchangeable
1584Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 603962-21?
603962-21 is a VALVE ASSEMBLY,LIFERAFT.
What parts can replace 603962-21?
There are 11 known substitutes for 603962-21: 63A120H1-30, B-79WITHB-79-3R, NAF603962-22 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 603962-21?
603962-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4220-00-370-4178. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026