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Technical Data Sheet
PartsTable / O-RING / MIL-R-3533
MIL-R-3533 ✓ 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 SEAL,NONMETALLIC STRIP is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, construction: ONE-PIECE, overall_length: 45.540 INCHES MINIMUM AND 46.460 INCHES MAXIMUM IN, style_designator: STRIP, cross-sectional_width: 0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN, cross-sectional_height: 0.950 INCHES MINIMUM AND 1.050 INCHES MAXIMUM 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 5331-00-297-5408, 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
MIL-R-3533
NSN: 5331-00-297-5408
FSC: 5331 — O-RING
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
constructionONE-PIECE
overall_length45.540 INCHES MINIMUM AND 46.460 INCHES MAXIMUM IN
style_designatorSTRIP
cross-sectional_width0.578 INCHES MINIMUM AND 0.672 INCHES MAXIMUM IN
cross-sectional_height0.950 INCHES MINIMUM AND 1.050 INCHES MAXIMUM IN
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-R-3533, TYPE 2, GRADE B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5331-00-297-5408
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-R-3533 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER0.234 INCHES MINIMUM AND 0.244 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
693RAPC18Interchangeable
interchangeable cross-reference
interchangeable
100A10-5Interchangeable
interchangeable cross-reference
interchangeable
B0318 2-010Interchangeable
interchangeable cross-reference
interchangeable
101-00500Interchangeable
interchangeable cross-reference
interchangeable
MS28775-010Interchangeable
interchangeable cross-reference
interchangeable
58-010-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-R-3533?
MIL-R-3533 is a SEAL,NONMETALLIC STRIP.
What parts can replace MIL-R-3533?
There are 25 known substitutes for MIL-R-3533: 693RAPC18, 100A10-5, B0318 2-010 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-3533?
MIL-R-3533 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-297-5408. 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