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443KA — PADLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

443KA: PADLOCK.

The PADLOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, shackle_diameter: 0.375 INCHES NOMINAL IN, shackle_clearance: 0.625 INCHES NOMINAL IN, end_item_identification: LOS ANGELES CLASS SSN (688), DOOR ASSY, BR., operating_mechanism_type: PIN TUMBLER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-494-0998, 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
443KA
NSN: 5340-01-494-0998
FSC: 5340 — Hardware, Commercial
CAGE: 38797 — MASTER LOCK COMPANY LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shackle_diameter0.375 INCHES NOMINAL IN
shackle_clearance0.625 INCHES NOMINAL IN
end_item_identificationLOS ANGELES CLASS SSN (688), DOOR ASSY, BR.
operating_mechanism_typePIN TUMBLER
NSN5340-01-494-0998
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 443KA 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
•
SHACKLE CLEARANCE: 0.625 INCHES NOMINAL IN
•
OPERATING MECHANISM TYPE: PIN TUMBLER
•
MATERIAL: STEEL OVERALL
•
SHACKLE DIAMETER: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SHACKLE CLEARANCE0.625 INCHES NOMINAL IN
OPERATING MECHANISM TYPEPIN TUMBLER
END ITEM IDENTIFICATIONLOS ANGELES CLASS SSN (688), DOOR ASSY, BR.
MATERIALSTEEL OVERALL
SHACKLE DIAMETER0.375 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 1
H821-0202-100Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 443KA?
443KA is a PADLOCK.
What parts can replace 443KA?
There is 1 known substitute for 443KA: H821-0202-100. Substitute compatibility should be verified for your specific system.
What is the NSN for 443KA?
443KA is cataloged in the U.S. Government catalog under NSN 5340-01-494-0998. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.