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RT253-65-157 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

RT253-65-157: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF, outside_diameter: 4.693 INCHES NOMINAL IN, center_hole_diameter: 4.472 INCHES MINIMUM AND 4.502 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM, cross-sectional_height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-182-3170, 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
RT253-65-157
NSN: 5331-00-182-3170
FSC: 5331 — O-ring
CAGE: 77969 — RUBBERCRAFT CORPORATION OF CALIFORNIA, LTD. DBA RUBBERCRAFT CORP (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
outside_diameter4.693 INCHES NOMINAL IN
center_hole_diameter4.472 INCHES MINIMUM AND 4.502 INCHES MAXIMUM IN
elongation_percentage200 MAXIMUM
cross-sectional_height0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
NSN5331-00-182-3170
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: RT253-65-157 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL HEIGHT: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 4.693 INCHES NOMINAL IN
•
ELONGATION PERCENTAGE: 200 MAXIMUM
•
CENTER HOLE DIAMETER: 4.472 INCHES MINIMUM AND 4.502 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
OUTSIDE DIAMETER4.693 INCHES NOMINAL IN
ELONGATION PERCENTAGE200 MAXIMUM
CENTER HOLE DIAMETER4.472 INCHES MINIMUM AND 4.502 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 9
SR-822A-60-157Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7866-157Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-AS29513Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
04052333006576Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
10V60-141-157Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
60-P-31-157Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is RT253-65-157?
RT253-65-157 is a O-RING.
What parts can replace RT253-65-157?
There are 9 known substitutes for RT253-65-157: SR-822A-60-157, 7866-157, SAE-AS29513 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RT253-65-157?
RT253-65-157 is cataloged in the U.S. Government catalog under NSN 5331-00-182-3170. This indicates validated use in U.S. government and defense supply chains.
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