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5545412-4 — PADLOCK SET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5545412-4: PADLOCK SET.

The PADLOCK SET is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, overall_width: 1.500 INCHES NOMINAL IN, overall_height: 0.840 INCHES NOMINAL IN, overall_length: 2.750 INCHES NOMINAL IN, shackle_diameter: 0.218 INCHES NOMINAL IN, shackle_clearance: 1.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-419-1409, 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
5545412-4
NSN: 5340-01-419-1409
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
overall_width1.500 INCHES NOMINAL IN
overall_height0.840 INCHES NOMINAL IN
overall_length2.750 INCHES NOMINAL IN
padlock_quantity6
shackle_diameter0.218 INCHES NOMINAL IN
shackle_clearance1.250 INCHES NOMINAL IN
surface_treatmentNICKEL OR CADMIUM OVERALL
end_item_identificationARLEIGH BURKE CLASS DDG; SURFACE TORPEDO TUBES & ORDALTS
operating_mechanism_typePIN TUMBLER
individual_padlock_keying_typeKEYED ALIKE
NSN5340-01-419-1409
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5545412-4 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
•
INDIVIDUAL PADLOCK KEYING TYPE: KEYED ALIKE
•
SHACKLE CLEARANCE: 1.250 INCHES NOMINAL IN
•
OPERATING MECHANISM TYPE: PIN TUMBLER
•
PADLOCK QUANTITY: 6
•
SURFACE TREATMENT: NICKEL OR CADMIUM OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.840 INCHES NOMINAL IN
INDIVIDUAL PADLOCK KEYING TYPEKEYED ALIKE
SHACKLE CLEARANCE1.250 INCHES NOMINAL IN
OVERALL LENGTH2.750 INCHES NOMINAL IN
OPERATING MECHANISM TYPEPIN TUMBLER
PADLOCK QUANTITY6
OVERALL WIDTH1.500 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OR CADMIUM OVERALL
END ITEM IDENTIFICATIONARLEIGH BURKE CLASS DDG; SURFACE TORPEDO TUBES & ORDALTS
MATERIALCOPPER ALLOY OVERALL
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 2
10835A54Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
10835A999 SET OF 6Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5545412-4?
5545412-4 is a PADLOCK SET.
What parts can replace 5545412-4?
There are 2 known substitutes for 5545412-4: 10835A54, 10835A999 SET OF 6. Substitute compatibility should be verified for your specific system.
What is the NSN for 5545412-4?
5545412-4 is cataloged in the U.S. Government catalog under NSN 5340-01-419-1409. 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.