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Technical Data Sheet

M8791/1-218 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M8791/1-218: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC ALLYL OVERALL, joint_type: SCARF-PERIPHERAL OVERALL, center_hole_diameter: 1.247 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN, cross-sectional_height: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN, end_item_identification: C130-J ACFT, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-449-7945, 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
M8791/1-218
NSN: 5330-01-449-7945
FSC: 5330 — Packing and Gasket Materials
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC ALLYL OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
center_hole_diameter1.247 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
cross-sectional_height0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
end_item_identificationC130-J ACFT
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-449-7945
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M8791/1-218 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: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
CENTER HOLE DIAMETER: 1.247 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC ALLYL OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CENTER HOLE DIAMETER1.247 INCHES MINIMUM AND 1.249 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONC130-J ACFT
MATERIALPLASTIC ALLYL OVERALL
JOINT TYPESCARF-PERIPHERAL OVERALL
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 3
AS8791Reference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-R-8791Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS8791/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 M8791/1-218?
M8791/1-218 is a RETAINER,PACKING.
What parts can replace M8791/1-218?
There are 3 known substitutes for M8791/1-218: AS8791, MIL-R-8791, SAE-AS8791/1. Substitute compatibility should be verified for your specific system.
What is the NSN for M8791/1-218?
M8791/1-218 is cataloged in the U.S. Government catalog under NSN 5330-01-449-7945. This indicates validated use in U.S. government and defense supply chains.
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