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Technical Data Sheet
C54520 ✓ 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,STOP-CHECK is a the manufacturer industrial component. Key specifications include length: 0.375 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 1.250 INCHES MINIMUM IN, overall_length: 2.719 INCHES NOMINAL IN, shank_diameter: 0.381 INCHES MINIMUM IN, style_designator: STRAIGHT FLUTE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5136-00-580-7355, 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
C54520
NSN: 5136-00-580-7355
FSC: 5136
CAGE: 60NQ9 — GREENFIELD INDUSTRIES INC (USA)
SPECIFICATIONS
length0.375 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length1.250 INCHES MINIMUM IN
flute_quantity4
overall_length2.719 INCHES NOMINAL IN
shank_diameter0.381 INCHES MINIMUM IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.238 INCHES NOMINAL IN
starting_chamfer_typeBOTTOMING
thread_forming_methodGROUND
NSN5136-00-580-7355
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available VALVE,STOP-CHECK TITLE COMPONENT PN C54520 MFR VALVE,STOP-CHECK
KEY FEATURES
THREAD LENGTH: 1.250 INCHES MINIMUM IN
SHANK DIAMETER: 0.381 INCHES MINIMUM IN
THREAD STRUCTURE: REGULAR
MATERIAL: STEEL OVERALL
STARTING CHAMFER TYPE: BOTTOMING
LENGTH: 0.375 INCHES NOMINAL SQUARE END IN
THREAD FORMING METHOD: GROUND
STYLE DESIGNATOR: STRAIGHT FLUTE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD LENGTH1.250 INCHES MINIMUM IN
SHANK DIAMETER0.381 INCHES MINIMUM IN
THREAD STRUCTUREREGULAR
MATERIALSTEEL OVERALL
STARTING CHAMFER TYPEBOTTOMING
LENGTH0.375 INCHES NOMINAL SQUARE END IN
THREAD FORMING METHODGROUND
STYLE DESIGNATORSTRAIGHT FLUTE
THREAD SIZE AND SERIES/TYPE DESIGNATOR0.312-24 UNF
SPECIFICATION/STANDARD DATA05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
12125Interchangeable
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2667003Interchangeable
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11211Interchangeable
interchangeable cross-reference
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45020Interchangeable
interchangeable cross-reference
interchangeable
31517Interchangeable
interchangeable cross-reference
interchangeable
0042873Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C54520?
C54520 is a VALVE,STOP-CHECK.
What parts can replace C54520?
There are 24 known substitutes for C54520: 12125, 2667003, 11211 and 21 more. Substitute compatibility should be verified for your specific system.
Is C54520 still available?
C54520 is currently cancelled.
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