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PartsTable / COMPONENT / 5481K17
5481K17 ✓ 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

CAP-PLUG SET,PROTECTIVE,DUST AND. Key specifications include material: PLASTIC, POLYETHYLENE (PP) OVERALL, thread_length: 0.590 INCHES NOMINAL EXTERNAL IN, exterior_color: RED OVERALL, nominal_thread_size: 0.500 INCHES EXTERNAL IN, maximum_operating_temp: 165.0 FAHRENHEIT DEGF, thread_series_designator: NPT EXTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-386-1553, 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
5481K17
NSN: 5340-01-386-1553
FSC: 5340
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialPLASTIC, POLYETHYLENE (PP) OVERALL
thread_length0.590 INCHES NOMINAL EXTERNAL IN
exterior_colorRED OVERALL
nominal_thread_size0.500 INCHES EXTERNAL IN
maximum_operating_temp165.0 FAHRENHEIT DEGF
thread_series_designatorNPT EXTERNAL
part_name_assigned_by_controlling_agencyPLASTIC THREADED PLUG FOR NPT PIPE FITTING - P SERIES; THREADED PLUG, RAISED SQUARE HEAD
NSN5340-01-386-1553
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5481K17 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5481K17Interchangeable
interchangeable cross-reference
interchangeable
P-48Interchangeable
interchangeable cross-reference
interchangeable
99120407Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5481K17?
5481K17 is a CAP-PLUG SET,PROTECTIVE,DUST AND.
What parts can replace 5481K17?
There are 3 known substitutes for 5481K17: 5481K17, P-48, 99120407. Substitute compatibility should be verified for your specific system.
What is the NSN for 5481K17?
5481K17 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-386-1553. 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