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ERCA00664A0 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ERCA00664A0: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include outside_diameter: 0.6875 INCHES NOMINAL IN, center_hole_diameter: 0.50 INCHES NOMINAL IN, cross-sectional_height: 0.0937 INCHES NOMINAL IN, end_item_identification: VALVE,PRES REG 1.50, part_name_assigned_by_controlling_agency: 0-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-701-8170, 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
ERCA00664A0
NSN: 5331-01-701-8170
FSC: 5331 — O-ring
CAGE: 4W9E5 — EMERSON PROCESS MANAGEMENT LLLP (USA)
SPECIFICATIONS
outside_diameter0.6875 INCHES NOMINAL IN
center_hole_diameter0.50 INCHES NOMINAL IN
cross-sectional_height0.0937 INCHES NOMINAL IN
end_item_identificationVALVE,PRES REG 1.50
part_name_assigned_by_controlling_agency0-RING
NSN5331-01-701-8170
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ERCA00664A0 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: 0.0937 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.6875 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.50 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.0937 INCHES NOMINAL IN
OUTSIDE DIAMETER0.6875 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.50 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCY0-RING
END ITEM IDENTIFICATIONVALVE,PRES REG 1.50
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ERCA00664A0?
ERCA00664A0 is a O-RING.
What is the NSN for ERCA00664A0?
ERCA00664A0 is cataloged in the U.S. Government catalog under NSN 5331-01-701-8170. 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.