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Technical Data Sheet
PartsTable / COMPONENT / 1604-167-Y
1604-167-Y ✓ 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. Key specifications include material: PLASTIC, design_type: THREADED, thread_class: 2B, overall_diameter: 0.594 INCHES NOMINAL IN, inside_diameter_length: 0.375 INCHES NOMINAL IN, round_cap_outside_surface_condition: RIBBED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-577-3545, 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
1604-167-Y
NSN: 5340-00-577-3545
FSC: 5340
CAGE: 34662 — ROBROY INDUSTRIES INC ROBROY PLASTICS DIV (USA)
SPECIFICATIONS
materialPLASTIC
design_typeTHREADED
thread_class2B
overall_diameter0.594 INCHES NOMINAL IN
inside_diameter_length0.375 INCHES NOMINAL IN
round_cap_outside_surface_conditionRIBBED
thread_size_and_series/type_designator7/16-20 UNF
NSN5340-00-577-3545
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1604-167-Y 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
•
INSIDE DIAMETER LENGTH: 0.375 INCHES NOMINAL IN
•
THREAD CLASS: 2A A
•
MATERIAL: PLASTIC
•
ROUND CAP OUTSIDE SURFACE CONDITION: RIBBED
•
DESIGN TYPE: THREADED
•
THREAD SIZE AND SERIES/TYPE DESIGNATOR: 7/16-20 UNF
•
OVERALL DIAMETER: 0.594 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER LENGTH0.375 INCHES NOMINAL IN
THREAD CLASS2A A
MATERIALPLASTIC
ROUND CAP OUTSIDE SURFACE CONDITIONRIBBED
DESIGN TYPETHREADED
SPECIAL FEATURESTHREAD CLASS CAN ALSO BE 3A A
THREAD SIZE AND SERIES/TYPE DESIGNATOR7/16-20 UNF
OVERALL DIAMETER0.594 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
910079-4Upgraded Successor
successor cross-reference
successor
1604-167-YUpgraded Successor
successor cross-reference
successor
211013Interchangeable
interchangeable cross-reference
interchangeable
7606Interchangeable
interchangeable cross-reference
interchangeable
306KDInterchangeable
interchangeable cross-reference
interchangeable
26X18X2RH3BLSTYLEIInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1604-167-Y?
1604-167-Y is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 1604-167-Y?
There are 18 known substitutes for 1604-167-Y: 910079-4, 1604-167-Y, 211013 and 15 more. Substitute compatibility should be verified for your specific system.
Is 1604-167-Y still available?
1604-167-Y is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026