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Technical Data Sheet
PartsTable / COMPONENT / 744HUS3KD
744HUS3KD ✓ 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 LOCK SET,MORTISE is a the manufacturer industrial component. Key specifications include shape: ROUND CASE, length: 1.375 INCHES NOMINAL IN, diameter: 2.125 INCHES NOMINAL IN, material: STEEL KNOB, bolt_type: UNIVERSAL, thickness: 1.375 INCHES NOMINAL OVERALL 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 5340-00-580-4971, 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
744HUS3KD
NSN: 5340-00-580-4971
FSC: 5340
CAGE: 91844 — EMHART INDUSTRIES INC KWIKSET DIV (USA)
SPECIFICATIONS
shapeROUND CASE
length1.375 INCHES NOMINAL IN
diameter2.125 INCHES NOMINAL IN
materialSTEEL KNOB
bolt_typeUNIVERSAL
thickness1.375 INCHES NOMINAL OVERALL IN
knob_shapeROUND
design_typeLATCH BOLT
knob_quantity2
operation_methodKNOB ON INSIDE AND KNOB ON OUTSIDE LATCH BOLT
features_providedKEY AND ROSE
surface_treatmentCOPPER ALLOY KNOB
NSN5340-00-580-4971
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 744HUS3KD 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
•
DIAMETER: 2.125 INCHES NOMINAL IN
•
BOLT TYPE: UNIVERSAL
•
FEATURES PROVIDED: KEY AND ROSE
•
SHAPE: ROUND CASE
•
THICKNESS: 1.375 INCHES NOMINAL OVERALL IN
•
MATERIAL: COPPER ALLOY CASE
•
KNOB QUANTITY: 2
•
LOCKING MECHANISM TYPE: PIN TUMBLER
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER2.125 INCHES NOMINAL IN
BOLT TYPEUNIVERSAL
FEATURES PROVIDEDKEY AND ROSE
SHAPEROUND CASE
THICKNESS1.375 INCHES NOMINAL OVERALL IN
MATERIALCOPPER ALLOY CASE
KNOB QUANTITY2
LOCKING MECHANISM TYPEPIN TUMBLER
LENGTH1.375 INCHES NOMINAL IN
OPERATION METHODKNOB ON INSIDE AND KNOB ON OUTSIDE LATCH BOLT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A-A-59282Interchangeable
interchangeable cross-reference
interchangeable
0C265Interchangeable
interchangeable cross-reference
interchangeable
MILSTD1218Interchangeable
interchangeable cross-reference
interchangeable
34-36Interchangeable
interchangeable cross-reference
interchangeable
LS3247-2Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQA200-11Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 744HUS3KD?
744HUS3KD is a LOCK SET,MORTISE.
What parts can replace 744HUS3KD?
There are 10 known substitutes for 744HUS3KD: A-A-59282, 0C265, MILSTD1218 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 744HUS3KD?
744HUS3KD is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-580-4971. 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