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PartsTable / COMPONENT / C539-11
C539-11 ✓ 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

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, overall_width: 0.250 INCHES NOMINAL IN, surface_treatment: PASSIVATE BAND, nominal_thread_size: 0.600 INCHES IN, loop_inside_diameter: 0.188 INCHES NOMINAL IN, thread_quantity_per_inch: 32. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-060-2949, 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
C539-11
NSN: 5340-01-060-2949
FSC: 5340
CAGE: 81755 — LOCKHEED MARTIN CORPORATION DIV LOCKHEED MARTIN AERONAUTICS COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
overall_width0.250 INCHES NOMINAL IN
surface_treatmentPASSIVATE BAND
nominal_thread_size0.600 INCHES IN
loop_inside_diameter0.188 INCHES NOMINAL IN
thread_quantity_per_inch32
distance_from_loop_center_to_tongue_end0.311 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.187 INCHES NOMINAL IN
NSN5340-01-060-2949
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C539-11 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
•
NOMINAL THREAD SIZE: 0.600 INCHES IN
•
SURFACE TREATMENT: PASSIVATE BAND
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.311 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.187 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 416 OVERALL
•
LOOP INSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.600 INCHES IN
SURFACE TREATMENTPASSIVATE BAND
DISTANCE FROM LOOP CENTER TO TONGUE END0.311 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.187 INCHES NOMINAL IN
MATERIALSTEEL COMP 416 OVERALL
LOOP INSIDE DIAMETER0.188 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
A950Interchangeable
interchangeable cross-reference
interchangeable
5310PL0951123Interchangeable
interchangeable cross-reference
interchangeable
805057Interchangeable
interchangeable cross-reference
interchangeable
XLS7TFInterchangeable
interchangeable cross-reference
interchangeable
XLS7Interchangeable
interchangeable cross-reference
interchangeable
1M93AUDInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C539-11?
C539-11 is a CLAMP,LOOP.
What parts can replace C539-11?
There are 17 known substitutes for C539-11: A950, 5310PL0951123, 805057 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for C539-11?
C539-11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-060-2949. 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