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863C2010261-003 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

863C2010261-003: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER SYNTHETIC OVERALL, construction: SOLIDSOLID, aperture_width: 110.085 INCHES NOMINAL110.085 INCHES NOMINAL IN, aperture_length: 116.680 INCHES NOMINAL116.680 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, attachment_method: ROUND HOLEROUND HOLE. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-227-6440, 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
863C2010261-003
NSN: 5330-01-227-6440
FSC: 5330 — Packing and Gasket Materials
CAGE: 04236 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
constructionSOLIDSOLID
aperture_width110.085 INCHES NOMINAL110.085 INCHES NOMINAL IN
aperture_length116.680 INCHES NOMINAL116.680 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
attachment_methodROUND HOLEROUND HOLE
cross-sectional_width1.438 INCHES NOMINAL1.438 INCHES NOMINAL IN
cross-sectional_height0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
attachment_hole_diameter0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
cross-sectional_thickness0.094 INCHES NOMINAL0.094 INCHES NOMINAL IN
inside_corner_bevel_length1.120 INCHES NOMINAL1.120 INCHES NOMINAL IN
attachment_feature_quantity2020
NSN5330-01-227-6440
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 863C2010261-003 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
•
ATTACHMENT HOLE DIAMETER: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
•
ATTACHMENT FEATURE QUANTITY: 2020
•
OUTSIDE CORNER BEVEL LENGTH: 1.620 INCHES NOMINAL1.620 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.094 INCHES NOMINAL0.094 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 1.438 INCHES NOMINAL1.438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: HOLLOW BULBHOLLOW BULB
TECHNICAL CHARACTERISTICS
ATTACHMENT HOLE DIAMETER0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
ATTACHMENT FEATURE QUANTITY2020
OUTSIDE CORNER BEVEL LENGTH1.620 INCHES NOMINAL1.620 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.094 INCHES NOMINAL0.094 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.750 INCHES NOMINAL0.750 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH1.438 INCHES NOMINAL1.438 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULBHOLLOW BULB
APERTURE WIDTH110.085 INCHES NOMINAL110.085 INCHES NOMINAL IN
CROSS SECTION INSIDE DIAMETER0.562 INCHES NOMINAL0.562 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 2
863C2010261-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
863C2010261-004Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 863C2010261-003?
863C2010261-003 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace 863C2010261-003?
There are 2 known substitutes for 863C2010261-003: 863C2010261-001, 863C2010261-004. Substitute compatibility should be verified for your specific system.
What is the NSN for 863C2010261-003?
863C2010261-003 is cataloged in the U.S. Government catalog under NSN 5330-01-227-6440. 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.