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T198A ✓ 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 material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, coil_quantity: 5-1/2, inside_diameter: 1.094 INCHES NOMINAL IN, style_designator: TAPERED, surface_treatment: CADMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-256-9643, 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
T198A
NSN: 5360-00-256-9643
FSC: 5360
CAGE: 09136 — BAY CITY SHOVELS, INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
coil_quantity5-1/2
inside_diameter1.094 INCHES NOMINAL IN
style_designatorTAPERED
surface_treatmentCADMIUM OVERALL
spring_free_length1.594 INCHES NOMINAL IN
spring_solid_length0.078 INCHES NOMINAL IN
coil_helix_directionLEFT-HAND
spring_free_outside_diameter2.281 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN
NSN5360-00-256-9643
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING,HELICAL,COMPRESSION TITLE COMPONENT PN T198A MFR SPRING,HELICAL,COMPRES
KEY FEATURES
•
INSIDE DIAMETER: 1.094 INCHES NOMINAL IN
•
STYLE DESIGNATOR: TAPERED
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING FREE OUTSIDE DIAMETER: 2.281 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
COIL HELIX DIRECTION: LEFT-HAND
•
SURFACE TREATMENT: CADMIUM OVERALL
•
SPRING SOLID LENGTH: 0.078 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.094 INCHES NOMINAL IN
STYLE DESIGNATORTAPERED
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING FREE OUTSIDE DIAMETER2.281 INCHES MINIMUM AND 2.312 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
COIL HELIX DIRECTIONLEFT-HAND
SURFACE TREATMENTCADMIUM OVERALL
SPRING SOLID LENGTH0.078 INCHES NOMINAL IN
COIL QUANTITY5-1/2
SPRING FREE LENGTH1.594 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
112-21Interchangeable
interchangeable cross-reference
interchangeable
12-13Interchangeable
interchangeable cross-reference
interchangeable
C54661Interchangeable
interchangeable cross-reference
interchangeable
B94.9Interchangeable
interchangeable cross-reference
interchangeable
2283382Interchangeable
interchangeable cross-reference
interchangeable
3034520-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T198A?
T198A is a SPRING,HELICAL,COMPRESSION.
What parts can replace T198A?
There are 15 known substitutes for T198A: 112-21, 12-13, C54661 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for T198A?
T198A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-256-9643. 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