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PartsTable / COMPONENT / ZP20733
ZP20733 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1039 AND RUBBER OVERALL, construction: ONE-PIECE, outside_diameter: 0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, special_features: 0.666 IN. DIA.; 0.364 IN.

DIA. HOLE IN, surface_treatment: CADMIUM OVERALL, retainer_thickness: 0.066 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-585-0173, 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
ZP20733
NSN: 5330-00-585-0173
FSC: 5330
CAGE: 98373 — RISDON MFG CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1039 AND RUBBER OVERALL
constructionONE-PIECE
outside_diameter0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
special_features0.666 IN. DIA.; 0.364 IN. DIA. HOLE IN
surface_treatmentCADMIUM OVERALL
retainer_thickness0.066 INCHES NOMINAL IN
gage_ring_thickness0.050 INCHES NOMINAL IN
packing_inside_diameter0.159 INCHES NOMINAL IN
material_document_and_classificationQQ-S-698 FED SPEC 1ST MATERIAL RESPONSE AND MIL-R-6855,CLASS 1 + 2,GRADE 60,N 406-60 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
packing_ring_cross-sectional_diameter0.066 INCHES NOMINAL IN
surface_treatment_document_and_classificationQQ-P-416,CLASS 2,TYPE 1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5330-00-585-0173
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ZP20733 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
•
MATERIAL: RUBBER SYNTHETIC PACKING
•
SURFACE TREATMENT: CADMIUM AND CHROMATE RETAINER
•
OUTSIDE DIAMETER: 0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
•
RETAINER THICKNESS: 0.066 INCHES NOMINAL IN
•
PACKING INSIDE DIAMETER: 0.159 INCHES NOMINAL IN
•
CONSTRUCTION: ONE-PIECE
•
PACKING RING CROSS-SECTIONAL DIAMETER: 0.066 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC PACKING
SURFACE TREATMENTCADMIUM AND CHROMATE RETAINER
OUTSIDE DIAMETER0.375 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
RETAINER THICKNESS0.066 INCHES NOMINAL IN
MATERIALSTEEL RETAINER
PACKING INSIDE DIAMETER0.159 INCHES NOMINAL IN
CONSTRUCTIONONE-PIECE
PACKING RING CROSS-SECTIONAL DIAMETER0.066 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
11155Interchangeable
interchangeable cross-reference
interchangeable
13957Interchangeable
interchangeable cross-reference
interchangeable
JAN1N4465AInterchangeable
interchangeable cross-reference
interchangeable
1N4327AInterchangeable
interchangeable cross-reference
interchangeable
019-004655Interchangeable
interchangeable cross-reference
interchangeable
00154-0178Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ZP20733?
ZP20733 is a GASKET.
What parts can replace ZP20733?
There are 18 known substitutes for ZP20733: 11155, 13957, JAN1N4465A and 15 more. Substitute compatibility should be verified for your specific system.
Is ZP20733 still available?
ZP20733 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026