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518851 ✓ 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 SPRING,HELICAL,COMPRESSION is a the manufacturer industrial component. Key specifications include end_item_identification: F-22 AIRCRAFT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-812-7832, 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
518851
NSN: 6685-00-812-7832
FSC: 6685
CAGE: 83179 — JOY MFG CO AIR POWER GROUP MICHIGAN CITY PLANT (USA)
SPECIFICATIONS
end_item_identificationF-22 AIRCRAFT
NSN6685-00-812-7832
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN 518851 MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
EXTENSION NECK LENGTH: 1.000 INCHES NOMINAL IN
•
CASE DIAMETER: 2.312 INCHES NOMINAL IN
•
ACTUATING MEDIUM: VAPOR TENSION
•
SCALE SMALLEST INCREMENT: 2.0 DEG FAHRENHEIT
•
MATERIAL: STEEL METER CASE
•
STYLE DESIGNATOR: BULB W/O SOCKET
•
SCALE ACCURACY RATING: 2 PCT
TECHNICAL CHARACTERISTICS (FLIS)
EXTENSION NECK LENGTH1.000 INCHES NOMINAL IN
CASE DIAMETER2.312 INCHES NOMINAL IN
ACTUATING MEDIUMVAPOR TENSION
SCALE SMALLEST INCREMENT2.0 DEG FAHRENHEIT
MATERIALSTEEL METER CASE
STYLE DESIGNATORBULB W/O SOCKET
MATERIALCOPPER ALLOY BULB
SCALE ACCURACY RATING2 PCT
ACTIVE PORTION LENGTH2.750 INCHES NOMINAL IN
BULB CONNECTION TYPEUNION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
K25240-003 FAHRENHEITInterchangeable
interchangeable cross-reference
interchangeable
1584A44Interchangeable
interchangeable cross-reference
interchangeable
57DFMInterchangeable
interchangeable cross-reference
interchangeable
XD57-142Interchangeable
interchangeable cross-reference
interchangeable
TYPE57Interchangeable
interchangeable cross-reference
interchangeable
67A77C194Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 518851?
518851 is a SPRING,HELICAL,COMPRESSION.
What parts can replace 518851?
There are 9 known substitutes for 518851: K25240-003 FAHRENHEIT, 1584A44, 57DFM and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 518851?
518851 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6685-00-812-7832. 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