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G7703 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, corner_shape: SQUARE INSIDE LEFT CORNER, flange_width: 1.8750 INCHES NOMINAL IN, overall_length: 2.5625 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.3115 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-181-3814, 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
G7703
NSN: 5330-00-181-3814
FSC: 5330
CAGE: 14541 — COOPER MACHINERY SERVICES LLC (USA)
SPECIFICATIONS
materialIRON OVERALL
corner_shapeSQUARE INSIDE LEFT CORNER
flange_width1.8750 INCHES NOMINAL IN
overall_length2.5625 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.3115 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
body_outside_diameter0.4950 INCHES MINIMUM AND 0.5050 INCHES MAXIMUM IN
flange_outside_diameter0.5635 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM IN
NSN5330-00-181-3814
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G7703 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
B166AInterchangeable
interchangeable cross-reference
interchangeable
217-3703Interchangeable
interchangeable cross-reference
interchangeable
4500166-6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G7703?
G7703 is a BEARING,ROLLER,NEEDLE.
What parts can replace G7703?
There are 3 known substitutes for G7703: B166A, 217-3703, 4500166-6. Substitute compatibility should be verified for your specific system.
What is the NSN for G7703?
G7703 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-181-3814. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026