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12278617 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12278617: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL, joint_type: SCARF-PERIPHERAL PACKING, hardness_rating: 50.0 SHORE DUROMETER A NOMINAL OVERALL, peripheral_diameter: 23.250 INCHES NOMINAL IN, center_hole_diameter: 22.374 INCHES NOMINAL IN, cross-sectional_height: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-222-0837, 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
12278617
NSN: 5330-01-222-0837
NIINs: 012220837, 013457010
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
joint_typeSCARF-PERIPHERAL PACKING
hardness_rating50.0 SHORE DUROMETER A NOMINAL OVERALL
peripheral_diameter23.250 INCHES NOMINAL IN
center_hole_diameter22.374 INCHES NOMINAL IN
cross-sectional_height0.312 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationMIL-R-6855 TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-222-0837
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12278617 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: 0.312 INCHES NOMINAL IN
•
HARDNESS RATING: 50.0 SHORE DUROMETER A NOMINAL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855 TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 23.250 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 22.374 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL PACKING
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.312 INCHES NOMINAL IN
HARDNESS RATING50.0 SHORE DUROMETER A NOMINAL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855 TYPE A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER23.250 INCHES NOMINAL IN
CENTER HOLE DIAMETER22.374 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
JOINT TYPESCARF-PERIPHERAL PACKING
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 12278617?
12278617 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 12278617?
12278617 is cataloged in the U.S. Government catalog under NSN 5330-01-222-0837. This indicates validated use in U.S. government and defense supply chains.
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