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PartsTable / COMPONENT / A31443
A31443 ✓ 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 GEAR,SPUR is a the manufacturer industrial component. Key specifications include diameter: 0.171 INCHES NOMINAL IN, material: ALUMINUM BAND, overall_width: 0.625 INCHES NOMINAL IN, style_designator: SINGLE LOOP, tongue_hole_type: ROUND, UNTHREADED, material_thickness: 0.017 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-205-6218, 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
A31443
NSN: 5340-00-205-6218
FSC: 5340
CAGE: 78553 — TINNERMAN PALNUT ENGINEERED PRODUCTS, INC. (USA)
SPECIFICATIONS
diameter0.171 INCHES NOMINAL IN
materialALUMINUM BAND
overall_width0.625 INCHES NOMINAL IN
style_designatorSINGLE LOOP
tongue_hole_typeROUND, UNTHREADED
material_thickness0.017 INCHES NOMINAL IN
loop_inside_diameter0.375 INCHES NOMINAL IN
cushioning_environmental_protectionHEAT
distance_from_loop_center_to_tongue_end0.703 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole0.438 INCHES NOMINAL IN
NSN5340-00-205-6218
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A31443 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 THICKNESS: 0.017 INCHES NOMINAL IN
•
TONGUE HOLE TYPE: ROUND, UNTHREADED
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL: ALUMINUM BAND
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 0.438 INCHES NOMINAL IN
•
CUSHIONING ENVIRONMENTAL PROTECTION: HEAT
•
DIAMETER: 0.171 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 0.703 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.017 INCHES NOMINAL IN
TONGUE HOLE TYPEROUND, UNTHREADED
STYLE DESIGNATORSINGLE LOOP
MATERIALALUMINUM BAND
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE0.438 INCHES NOMINAL IN
CUSHIONING ENVIRONMENTAL PROTECTIONHEAT
DIAMETER0.171 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END0.703 INCHES NOMINAL IN
OVERALL WIDTH0.625 INCHES NOMINAL IN
LOOP INSIDE DIAMETER0.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
G10197PC52Upgraded Successor
successor cross-reference
successor
DD445S4700-26PC46Upgraded Successor
successor cross-reference
successor
B10171PC7Upgraded Successor
successor cross-reference
successor
A31443Interchangeable
interchangeable cross-reference
interchangeable
85094Interchangeable
interchangeable cross-reference
interchangeable
96-9360Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A31443?
A31443 is a GEAR,SPUR.
What parts can replace A31443?
There are 8 known substitutes for A31443: G10197PC52, DD445S4700-26PC46, B10171PC7 and 5 more. Substitute compatibility should be verified for your specific system.
Is A31443 still available?
A31443 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