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0503-1-7 — PACKING,PREFORMED

✓ Government record, cited
Legrand · ORING SEAL
PRODUCT OVERVIEW

0503-1-7: PACKING,PREFORMED.

The PACKING,PREFORMED is a Legrand industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, peripheral_diameter: 0.500 INCHES NOMINAL IN, center_hole_diameter: 0.312 INCHES NOMINAL IN, cross-sectional_height: 0.094 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-627-5664, 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
0503-1-7
NSN: 5330-00-627-5664
FSC: 5330 — Packing and Gasket Materials
CAGE: 00819 — FLAIR CORPORATION DBA S P X AIR TREATMENT DIV DEHYDRATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
peripheral_diameter0.500 INCHES NOMINAL IN
center_hole_diameter0.312 INCHES NOMINAL IN
cross-sectional_height0.094 INCHES NOMINAL IN
cross-sectional_shape_styleU
NSN5330-00-627-5664
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0503-1-7 MFR: Legrand ⚠ 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: 0.094 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: U
•
PERIPHERAL DIAMETER: 0.500 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.094 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEU
PERIPHERAL DIAMETER0.500 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.312 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
9320.826.2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0501-3-7Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 0503-1-7?
0503-1-7 is a PACKING,PREFORMED manufactured by Legrand.
What parts can replace 0503-1-7?
There are 2 known substitutes for 0503-1-7: 9320.826.2, 0501-3-7. Substitute compatibility should be verified for your specific system.
What is the NSN for 0503-1-7?
0503-1-7 is cataloged in the U.S. Government catalog under NSN 5330-00-627-5664. 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.