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1LFCN — PADLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1LFCN: PADLOCK.

The PADLOCK is a the manufacturer industrial component. Key specifications include construction: SOLID OR LAMINATED, shackle_diameter: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, supplementary_features: STEEL, BRONZE, OR BRASS BODY WITH HARDENED STEEL SHACKLE, operating_mechanism_type: PIN TUMBLER OR DISK TUMBLER, nondefinitive_spec/std_data: PO 1 TYPE AND 2 GRADE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-346-4612, 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
1LFCN
NSN: 5340-01-346-4612
FSC: 5340 — Hardware, Commercial
CAGE: 38797 — MASTER LOCK COMPANY LLC (USA)
SPECIFICATIONS
constructionSOLID OR LAMINATED
shackle_diameter0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
special_featuresWITH CHAIN, KEY OPERATED, CORROSION RESISTANT, INSIDE VERTICAL CLEARANCE 1.000 TO 1.625 INCH, HORIZONTAL SIDE CLEARANCE 0.750 TO 0.875 INCH IN
supplementary_featuresSTEEL, BRONZE, OR BRASS BODY WITH HARDENED STEEL SHACKLE
operating_mechanism_typePIN TUMBLER OR DISK TUMBLER
nondefinitive_spec/std_dataPO 1 TYPE AND 2 GRADE
NSN5340-01-346-4612
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1LFCN 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
•
SUPPLEMENTARY FEATURES: STEEL, BRONZE, OR BRASS BODY WITH HARDENED STEEL SHACKLE
•
OPERATING MECHANISM TYPE: PIN TUMBLER OR DISK TUMBLER
•
NONDEFINITIVE SPEC/STD DATA: PO 1 TYPE AND 2 GRADE
•
SHACKLE DIAMETER: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
CONSTRUCTION: SOLID OR LAMINATED
TECHNICAL CHARACTERISTICS
SUPPLEMENTARY FEATURESSTEEL, BRONZE, OR BRASS BODY WITH HARDENED STEEL SHACKLE
OPERATING MECHANISM TYPEPIN TUMBLER OR DISK TUMBLER
NONDEFINITIVE SPEC/STD DATAPO 1 TYPE AND 2 GRADE
SPECIAL FEATURESWITH CHAIN, KEY OPERATED, CORROSION RESISTANT, INSIDE VERTICAL CLEARANCE 1.000 TO 1.625 INCH, HORIZONTAL SIDE CLEARANCE 0.750 TO 0.875 INCH IN
SHACKLE DIAMETER0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
CONSTRUCTIONSOLID OR LAMINATED
SUBSTITUTES & CROSS-REFERENCES 2
ASTM F883Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
1LFWReference 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 1LFCN?
1LFCN is a PADLOCK.
What parts can replace 1LFCN?
There are 2 known substitutes for 1LFCN: ASTM F883, 1LFW. Substitute compatibility should be verified for your specific system.
What is the NSN for 1LFCN?
1LFCN is cataloged in the U.S. Government catalog under NSN 5340-01-346-4612. This indicates validated use in U.S. government and defense supply chains.
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