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PartsTable / COMPONENT / 1031-539
1031-539 ✓ 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 SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 416 OVERALL, head_style: HEADLESS (SETSCREW), point_style: OVAL, thread_class: 2A A, thread_length: 0.500 INCHES NOMINAL IN, fastener_length: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-4755, 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
1031-539
NSN: 5340-00-090-4755
FSC: 5340
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL COMP 416 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleOVAL
thread_class2A A
thread_length0.500 INCHES NOMINAL IN
fastener_length0.500 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.190 INCHES IN
NSN5340-00-090-4755
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1031-539 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
•
MATERIAL: STEEL COMP 1010 BAND
•
DISTANCE FROM LOOP CENTER TO SHORT TONGUE END: 0.810 INCHES NOMINAL IN
•
LOOP INSIDE DIAMETER: 0.520 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM BAND
•
STYLE DESIGNATOR: CENTER MOUNT
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5042 ASSN STD SINGLE MATERIAL RESPONSE BAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 1010 BAND
DISTANCE FROM LOOP CENTER TO SHORT TONGUE END0.810 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.520 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM BAND
OVERALL WIDTH0.630 INCHES NOMINAL IN
STYLE DESIGNATORCENTER MOUNT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5042 ASSN STD SINGLE MATERIAL RESPONSE BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.560 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.880 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
1031-539Interchangeable
interchangeable cross-reference
interchangeable
495AXInterchangeable
interchangeable cross-reference
interchangeable
38706Interchangeable
interchangeable cross-reference
interchangeable
7EQ1224Interchangeable
interchangeable cross-reference
interchangeable
22300056Interchangeable
interchangeable cross-reference
interchangeable
23037Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1031-539?
1031-539 is a SETSCREW.
What parts can replace 1031-539?
There are 10 known substitutes for 1031-539: 1031-539, 495AX, 38706 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1031-539?
1031-539 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-090-4755. 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