PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 6304B
6304B ✓ 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,BACK PRESSURE is a the manufacturer industrial component. Key specifications include nozzle_type: HYDRAULIC, basic_material: STEEL, connection_thread_size: 0.125-27, connection_thread_location: INTERNAL, connection_thread_series_designator: NPT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4930-00-377-6820, 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
6304B
NSN: 4930-00-377-6820
FSC: 4930
CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
nozzle_typeHYDRAULIC
basic_materialSTEEL
connection_thread_size0.125-27
connection_thread_locationINTERNAL
connection_thread_series_designatorNPT
NSN4930-00-377-6820
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,BACK PRESSURE TITLE COMPONENT PN 6304B MFR VALVE,BACK PRESSURE
KEY FEATURES
•
CONNECTION THREAD SIZE: 0.125-27
•
BASIC MATERIAL: STEEL
•
CONNECTION THREAD SERIES DESIGNATOR: NPT
•
NOZZLE TYPE: HYDRAULIC
•
CONNECTION THREAD LOCATION: INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION THREAD SIZE0.125-27
BASIC MATERIALSTEEL
CONNECTION THREAD SERIES DESIGNATORNPT
NOZZLE TYPEHYDRAULIC
CONNECTION THREAD LOCATIONINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
1935143Interchangeable
interchangeable cross-reference
interchangeable
5845Interchangeable
interchangeable cross-reference
interchangeable
G308730AInterchangeable
interchangeable cross-reference
interchangeable
MIL-L-4387Interchangeable
interchangeable cross-reference
interchangeable
N2Interchangeable
interchangeable cross-reference
interchangeable
314150Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6304B?
6304B is a VALVE,BACK PRESSURE.
What parts can replace 6304B?
There are 23 known substitutes for 6304B: 1935143, 5845, G308730A and 20 more. Substitute compatibility should be verified for your specific system.
Is 6304B still available?
6304B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026