RT253-65-440 — O-RING

✓ Government record, cited

— · ORING SEAL

PRODUCT OVERVIEW

RT253-65-440: 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, hardness_rating: 60.0 SHORE DUROMETER A NOMINAL, outside_diameter: 7.275 INCHES NOMINAL IN, center_hole_diameter: 6.702 INCHES MINIMUM AND 6.748 INCHES MAXIMUM IN, elongation_percentage: 200 MAXIMUM. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-252-6042, 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

RT253-65-440

NSN: 5331-00-252-6042
FSC: 5331 — O-ring
CAGE: 77969 — RUBBERCRAFT CORPORATION OF CALIFORNIA, LTD. DBA RUBBERCRAFT CORP (USA)

SPECIFICATIONS

material	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating	-65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
hardness_rating	60.0 SHORE DUROMETER A NOMINAL
outside_diameter	7.275 INCHES NOMINAL IN
center_hole_diameter	6.702 INCHES MINIMUM AND 6.748 INCHES MAXIMUM IN
elongation_percentage	200 MAXIMUM
cross-sectional_height	0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
NSN	5331-00-252-6042

COMPONENT DIAGRAM

KEY FEATURES

•

TEMP RATING: -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF

•

CROSS-SECTIONAL HEIGHT: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN

•

OUTSIDE DIAMETER: 7.275 INCHES NOMINAL IN

•

HARDNESS RATING: 60.0 SHORE DUROMETER A NOMINAL

•

ELONGATION PERCENTAGE: 200 MAXIMUM

•

CENTER HOLE DIAMETER: 6.702 INCHES MINIMUM AND 6.748 INCHES MAXIMUM IN

•

MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

TECHNICAL CHARACTERISTICS

TEMP RATING	-65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF
CROSS-SECTIONAL HEIGHT	0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
OUTSIDE DIAMETER	7.275 INCHES NOMINAL IN
HARDNESS RATING	60.0 SHORE DUROMETER A NOMINAL
ELONGATION PERCENTAGE	200 MAXIMUM
CENTER HOLE DIAMETER	6.702 INCHES MINIMUM AND 6.748 INCHES MAXIMUM IN
MATERIAL	RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR

OTHER ITEMS IN FSC 5331 — O-ring

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924

SUBSTITUTES & CROSS-REFERENCES 8

SR-822A-60-440Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

PX1775-440Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MS29513-440Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

C-69-440Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

60-P-31-440Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

MILP5315Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· 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 RT253-65-440?

RT253-65-440 is a O-RING.

What parts can replace RT253-65-440?

There are 8 known substitutes for RT253-65-440: SR-822A-60-440, PX1775-440, MS29513-440 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for RT253-65-440?

RT253-65-440 is cataloged in the U.S. Government catalog under NSN 5331-00-252-6042. This indicates validated use in U.S. government and defense supply chains.

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