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CFR40116 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: STEEL, design_type: SOLID, end_diameter: 0.7500 INCHES NOMINAL IN, bore_diameter: 0.3580 INCHES NOMINAL IN, overall_height: 0.5050 INCHES NOMINAL IN, style_designator: SEAT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-339-5589, 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
CFR40116
NSN: 5340-00-339-5589
FSC: 5340
CAGE: 82254 — CURTIS DYNA-FOG, LTD. (USA)
SPECIFICATIONS
materialSTEEL
design_typeSOLID
end_diameter0.7500 INCHES NOMINAL IN
bore_diameter0.3580 INCHES NOMINAL IN
overall_height0.5050 INCHES NOMINAL IN
style_designatorSEAT
first_step_length0.0950 INCHES NOMINAL IN
counterbore_length0.3580 INCHES NOMINAL IN
first_step_diameter0.8000 INCHES NOMINAL IN
counterbore_diameter0.5180 INCHES NOMINAL IN
second_step_diameter1.0000 INCHES NOMINAL IN
distance_from_end_to_first_step0.3180 INCHES NOMINAL IN
NSN5340-00-339-5589
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: CFR40116 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
BORE DIAMETER: 0.3580 INCHES NOMINAL IN
•
FIRST STEP LENGTH: 0.0950 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.3180 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
END DIAMETER: 0.7500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SEAT
•
COUNTERBORE LENGTH: 0.3580 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER0.3580 INCHES NOMINAL IN
FIRST STEP LENGTH0.0950 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.3180 INCHES NOMINAL IN
DESIGN TYPESOLID
END DIAMETER0.7500 INCHES NOMINAL IN
STYLE DESIGNATORSEAT
COUNTERBORE LENGTH0.3580 INCHES NOMINAL IN
MATERIALSTEEL
COUNTERBORE DIAMETER0.5180 INCHES NOMINAL IN
FIRST STEP DIAMETER0.8000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
48318Interchangeable
interchangeable cross-reference
interchangeable
90-65Interchangeable
interchangeable cross-reference
interchangeable
TMT-99-65Interchangeable
interchangeable cross-reference
interchangeable
D25DInterchangeable
interchangeable cross-reference
interchangeable
54076Interchangeable
interchangeable cross-reference
interchangeable
54943-121Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CFR40116?
CFR40116 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace CFR40116?
There are 20 known substitutes for CFR40116: 48318, 90-65, TMT-99-65 and 17 more. Substitute compatibility should be verified for your specific system.
Is CFR40116 still available?
CFR40116 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