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7653377-2 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7653377-2: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM OR RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM, center_hole_diameter: 11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN, cross-sectional_height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, end_item_identification: MK16MOD0,UNDERWATER BREATHING APPARATUS(NSW). This part is cataloged in the U.S.

Government catalog under NSN 5331-01-544-2654, 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
7653377-2
NSN: 5331-01-544-2654
FSC: 5331 — O-ring
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM OR RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
center_hole_diameter11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
cross-sectional_height0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
end_item_identificationMK16MOD0,UNDERWATER BREATHING APPARATUS(NSW)
NSN5331-01-544-2654
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7653377-2 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: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM OR RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
CENTER HOLE DIAMETER11.910 INCHES MINIMUM AND 12.040 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMK16MOD0,UNDERWATER BREATHING APPARATUS(NSW)
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM OR RUBBER ETHYLENE-PROPYLENE-DIENE CLASS EPDM
SUBSTITUTES & CROSS-REFERENCES 1
7653377Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7653377-2?
7653377-2 is a O-RING.
What parts can replace 7653377-2?
There is 1 known substitute for 7653377-2: 7653377. Substitute compatibility should be verified for your specific system.
What is the NSN for 7653377-2?
7653377-2 is cataloged in the U.S. Government catalog under NSN 5331-01-544-2654. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.