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Technical Data Sheet
PartsTable / COMPONENT / 41B72
41B72 ✓ 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 PADLOCK is a the manufacturer industrial component. Key specifications include construction: SOLID, overall_width: 1.750 INCHES NOMINAL IN, overall_height: 1.438 INCHES NOMINAL IN, special_features: KEYWAY H; UNCOMBINATED; 4B-SERIES; THK. 13/16IN.

IN, operating_mechanism_type: PIN TUMBLER, nondefinitive_spec/std_data: EPB TYPE AND 1-3/4IN SIZE 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 5340-01-288-0482, 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
41B72
NSN: 5340-01-288-0482
FSC: 5340
CAGE: 70019 — STANLEY SECURITY SOLUTIONS, INC DBA BEST LOCK (USA)
SPECIFICATIONS
constructionSOLID
overall_width1.750 INCHES NOMINAL IN
overall_height1.438 INCHES NOMINAL IN
special_featuresKEYWAY H; UNCOMBINATED; 4B-SERIES; THK. 13/16IN. IN
operating_mechanism_typePIN TUMBLER
nondefinitive_spec/std_dataEPB TYPE AND 1-3/4IN SIZE IN
NSN5340-01-288-0482
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 41B72 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
•
NONDEFINITIVE SPEC/STD DATA: EPB TYPE AND 1-3/4IN SIZE IN
•
OPERATING MECHANISM TYPE: PIN TUMBLER
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESKEYWAY H; UNCOMBINATED; 4B-SERIES; THK. 13/16IN. IN
NONDEFINITIVE SPEC/STD DATAEPB TYPE AND 1-3/4IN SIZE IN
OPERATING MECHANISM TYPEPIN TUMBLER
CONSTRUCTIONSOLID
OVERALL HEIGHT1.438 INCHES NOMINAL IN
OVERALL WIDTH1.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
ASTM F883Upgraded Successor
successor cross-reference
successor
A-A-1928Upgraded Successor
successor cross-reference
successor
FF-P-101Upgraded Successor
successor cross-reference
successor
MDL300Upgraded Successor
successor cross-reference
successor
1500Upgraded Successor
successor cross-reference
successor
21B772Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 41B72?
41B72 is a PADLOCK.
What parts can replace 41B72?
There are 17 known substitutes for 41B72: ASTM F883, A-A-1928, FF-P-101 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 41B72?
41B72 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-288-0482. 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