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B-18SR533-70 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

B-18SR533-70: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, center_hole_diameter: 0.891 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN, cross-sectional_height: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-938-9102, 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
B-18SR533-70
NSN: 5331-00-938-9102
FSC: 5331 — O-ring
CAGE: 95272 — STILLMAN SEAL CORPORATION DIV STILLMAN SEAL CORPERATION (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
hardness_rating70.0 SHORE DUROMETER A NOMINAL
center_hole_diameter0.891 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
cross-sectional_height0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
NSN5331-00-938-9102
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B-18SR533-70 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: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
•
CENTER HOLE DIAMETER: 0.891 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
HARDNESS RATING70.0 SHORE DUROMETER A NOMINAL
CENTER HOLE DIAMETER0.891 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR
SUBSTITUTES & CROSS-REFERENCES 7
PRP918-2347Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
918-2347Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS28900Reference document
Same NSN cross-reference
Reference document — Identification reference
5-138 C557-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
PRP568-918-3110-70Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5-138 C873-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B-18SR533-70?
B-18SR533-70 is a O-RING.
What parts can replace B-18SR533-70?
There are 7 known substitutes for B-18SR533-70: PRP918-2347, 918-2347, MS28900 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-18SR533-70?
B-18SR533-70 is cataloged in the U.S. Government catalog under NSN 5331-00-938-9102. This indicates validated use in U.S. government and defense supply chains.
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