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MG2909R3 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MG2909R3: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER FLUOROSILICONE CLASS FQ CORE, construction: ONE-PIECE, overall_length: 108.000 INCHES NOMINAL IN, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL OVERALL, style_designator: STRIP, cross-sectional_width: 1.870 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-502-6863, 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
MG2909R3
NSN: 5330-01-502-6863
FSC: 5330 — Packing and Gasket Materials
CAGE: 64665 — AERO RUBBER CO INC (USA)
SPECIFICATIONS
materialRUBBER FLUOROSILICONE CLASS FQ CORE
constructionONE-PIECE
overall_length108.000 INCHES NOMINAL IN
hardness_rating50.0 SHORE DUROMETER A NOMINAL OVERALL
style_designatorSTRIP
cross-sectional_width1.870 INCHES NOMINAL IN
cross-sectional_height0.875 INCHES NOMINAL IN
end_item_identificationHELICOPTER, CARGO-TRANSPORT CHINOOK, CH-47; 1520-01-088-3669
cross-sectional_thickness0.090 INCHES NOMINAL IN
cross-sectional_shape_styleHOLLOW BULB
cross_section_inside_diameter0.695 INCHES NOMINAL IN
material_document_and_classificationMIL-R-25988, CL 1, TY 2, GR 50 MIL SPEC SINGLE MATERIAL RESPONSE CORE
NSN5330-01-502-6863
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MG2909R3 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 THICKNESS: 0.090 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.875 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 1.870 INCHES NOMINAL IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL OVERALL
•
STYLE DESIGNATOR: STRIP
•
MATERIAL DOCUMENT AND CLASSIFICATION: DACRON 400 MFR REF SINGLE MATERIAL RESPONSE JACKET
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.090 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.875 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH1.870 INCHES NOMINAL IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL OVERALL
STYLE DESIGNATORSTRIP
MATERIAL DOCUMENT AND CLASSIFICATIONDACRON 400 MFR REF SINGLE MATERIAL RESPONSE JACKET
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-25988, CL 1, TY 2, GR 50 MIL SPEC SINGLE MATERIAL RESPONSE CORE
OVERALL LENGTH108.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULB
CROSS SECTION INSIDE DIAMETER0.695 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
G2909R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
AA9500D4549Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MG2909R3?
MG2909R3 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What parts can replace MG2909R3?
There are 2 known substitutes for MG2909R3: G2909R1, AA9500D4549. Substitute compatibility should be verified for your specific system.
What is the NSN for MG2909R3?
MG2909R3 is cataloged in the U.S. Government catalog under NSN 5330-01-502-6863. 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.