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8412755 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8412755: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER CHLOROPRENE CLASS CR EXTERNAL, construction: SOLIDSOLID, aperture_width: 67.750 INCHES NOMINAL67.750 INCHES NOMINAL IN, aperture_length: 103.750 INCHES NOMINAL103.750 INCHES NOMINAL IN, special_features: CRITICAL APPLICATION ITEM (CAI)CRITICAL APPLICATION ITEM (CAI), style_designator: NON-CIRCULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-243-7443, 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
8412755
NSN: 5330-01-243-7443
FSC: 5330 — Packing and Gasket Materials
CAGE: 98747 — OGDEN AIR LOGISTICS CENTER (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR EXTERNAL
constructionSOLIDSOLID
aperture_width67.750 INCHES NOMINAL67.750 INCHES NOMINAL IN
aperture_length103.750 INCHES NOMINAL103.750 INCHES NOMINAL IN
special_featuresCRITICAL APPLICATION ITEM (CAI)CRITICAL APPLICATION ITEM (CAI)
style_designatorNON-CIRCULAR
inside_corner_radius3.870 INCHES NOMINAL3.870 INCHES NOMINAL IN
cross-sectional_width1.810 INCHES NOMINAL1.810 INCHES NOMINAL IN
outside_corner_radius5.680 INCHES NOMINAL5.680 INCHES NOMINAL IN
cross-sectional_height0.870 INCHES NOMINAL0.870 INCHES NOMINAL IN
end_item_identificationICBMICBM
cross-sectional_thickness0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN
NSN5330-01-243-7443
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8412755 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 NOMINAL0.090 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.870 INCHES NOMINAL0.870 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 3.870 INCHES NOMINAL3.870 INCHES NOMINAL IN
•
CROSS-SECTIONAL WIDTH: 1.810 INCHES NOMINAL1.810 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: AGAVAGAV
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6130,TYPE 1,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE CORE
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.090 INCHES NOMINAL0.090 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.870 INCHES NOMINAL0.870 INCHES NOMINAL IN
INSIDE CORNER RADIUS3.870 INCHES NOMINAL3.870 INCHES NOMINAL IN
CROSS-SECTIONAL WIDTH1.810 INCHES NOMINAL1.810 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONAGAVAGAV
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6130,TYPE 1,GRADE A MIL SPEC SINGLE MATERIAL RESPONSE CORE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,CLASS 2,TYPE B MIL SPEC SINGLE MATERIAL RESPONSE EXTERNAL
CROSS-SECTIONAL SHAPE STYLEHOLLOW BULB WITH CELLULAR RUBBERHOLLOW BULB WITH CELLULAR RUBBER
APERTURE WIDTH67.750 INCHES NOMINAL67.750 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

No substitute or cross-reference records for this part.

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 8412755?
8412755 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 8412755?
8412755 is cataloged in the U.S. Government catalog under NSN 5330-01-243-7443. 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.