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AR18-3 ✓ 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 LATCH,MORTISE is a the manufacturer industrial component. Key specifications include width: 0.660 INCHES NOMINAL IN, height: 2.620 INCHES NOMINAL IN, material: UNABLE TO DECODE, bolt_type: SINGLE BEVEL NONREVERSIBLE, face_shape: FLAT, action_type: SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-433-0424, 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
AR18-3
NSN: 5340-00-433-0424
FSC: 5340
CAGE: 80477 — ADAMS RITE AEROSPACE, INC (USA)
SPECIFICATIONS
width0.660 INCHES NOMINAL IN
height2.620 INCHES NOMINAL IN
materialUNABLE TO DECODE
bolt_typeSINGLE BEVEL NONREVERSIBLE
face_shapeFLAT
action_typeSPRING
special_featuresCASE SHAPE:RECTANGULAR;CASE WIDTH:4.060 IN.;CASE THICKNESS:0.660 IN.THK;BACKSET DEPTH:2.542 IN.;CASE HEIGHT:2.620 IN. IN
surface_treatmentUNABLE TO DECODE
operating_mechanism_locationBOTH SIDES
NSN5340-00-433-0424
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: AR18-3 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
•
ACTION TYPE: SPRING
•
MATERIAL: UNABLE TO DECODE
•
SURFACE TREATMENT: UNABLE TO DECODE
•
OPERATING MECHANISM LOCATION: BOTH SIDES
•
HEIGHT: 2.620 INCHES NOMINAL IN
•
WIDTH: 0.660 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCASE SHAPE:RECTANGULAR;CASE WIDTH:4.060 IN.;CASE THICKNESS:0.660 IN.THK;BACKSET DEPTH:2.542 IN.;CASE HEIGHT:2.620 IN. IN
ACTION TYPESPRING
MATERIALUNABLE TO DECODE
SURFACE TREATMENTUNABLE TO DECODE
OPERATING MECHANISM LOCATIONBOTH SIDES
HEIGHT2.620 INCHES NOMINAL IN
WIDTH0.660 INCHES NOMINAL IN
SURFACE TREATMENTUNABLE TO DECODE
MATERIALUNABLE TO DECODE
BOLT TYPESINGLE BEVEL NONREVERSIBLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
BS10123Interchangeable
interchangeable cross-reference
interchangeable
541AInterchangeable
interchangeable cross-reference
interchangeable
29-32-9Interchangeable
interchangeable cross-reference
interchangeable
WPP1536Interchangeable
interchangeable cross-reference
interchangeable
541-0D6AInterchangeable
interchangeable cross-reference
interchangeable
S18-541AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AR18-3?
AR18-3 is a LATCH,MORTISE.
What parts can replace AR18-3?
There are 7 known substitutes for AR18-3: BS10123, 541A, 29-32-9 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AR18-3?
AR18-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-433-0424. 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