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Technical Data Sheet
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Q6230-21 — Technical Data Sheet

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— · 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 PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include peripheral_diameter: 4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN, center_hole_diameter: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN, elongation_percentage: 164 MAXIMUM, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5330-00-194-3739, 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
Q6230-21
NSN: 5330-00-194-3739
FSC: 5330
CAGE: 14170 — HUGHES MISSILE SYSTEMS CO SAN DIEGO (USA)
SPECIFICATIONS
peripheral_diameter4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
center_hole_diameter4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
elongation_percentage164 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN5330-00-194-3739
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: Q6230-21 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: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
•
ELONGATION PERCENTAGE: 164 MAXIMUM
•
PERIPHERAL DIAMETER: 4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
ELONGATION PERCENTAGE164 MAXIMUM
PERIPHERAL DIAMETER4.351 INCHES MINIMUM AND 4.423 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
N304-7-21InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AN6230-21InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-243 N304-75InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS28775-243ESInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2-243-N304-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AN6230B21InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Q6230-21?
Q6230-21 is a PACKING,PREFORMED.
What parts can replace Q6230-21?
There are 26 known substitutes for Q6230-21: N304-7-21, AN6230-21, 2-243 N304-75 and 23 more. Substitute compatibility should be verified for your specific system.
Is Q6230-21 still available?
Q6230-21 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: October 2026