PartsTable
Technical Data Sheet
PDC-4-HK ✓ 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,PROTECTIVE,DUST AND MOISTURE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-139-4740, 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
PDC-4-HK
NSN: 5340-01-139-4740
FSC: 5340
CAGE: 73992 — TUTHILL CORP HANSEN COUPLING DIV (USA)
SPECIFICATIONS
Part NumberPDC-4-HK
NSN5340-01-139-4740
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: PDC-4-HK 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 5
26113Interchangeable
interchangeable cross-reference
interchangeable
35B016Interchangeable
interchangeable cross-reference
interchangeable
A-2Interchangeable
interchangeable cross-reference
interchangeable
AA35B016Interchangeable
interchangeable cross-reference
interchangeable
RT21508Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PDC-4-HK?
PDC-4-HK is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace PDC-4-HK?
There are 5 known substitutes for PDC-4-HK: 26113, 35B016, A-2 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PDC-4-HK?
PDC-4-HK is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-139-4740. This indicates validated use in U.S. government and defense supply chains.
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