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Technical Data Sheet

M8791/1-115 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M8791/1-115: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-PERIPHERAL OVERALL, peripheral_diameter: 0.854 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN, center_hole_diameter: 0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN, cross-sectional_height: 0.052 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-533-9161, 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
M8791/1-115
NSN: 5330-00-533-9161
NIINs: 005339161, 014288847, 014782129
FSC: 5330 — Packing and Gasket Materials
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
peripheral_diameter0.854 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN
center_hole_diameter0.684 INCHES MINIMUM AND 0.686 INCHES MAXIMUM IN
cross-sectional_height0.052 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
specification/standard_data81349MIL-R-8791 REV D/CANCELLED/ GOVERNMENT SPECIFICATION
departure_from_cited_documentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
criticality_code_justificationZZZW
material_document_and_classificationAS8791/1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-533-9161
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M8791/1-115 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: 0.050 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 0.862 INCHES MINIMUM AND 0.866 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL RETAINER
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.050 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER0.862 INCHES MINIMUM AND 0.866 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.688 INCHES NOMINAL IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
JOINT TYPESCARF-PERIPHERAL RETAINER
SUBSTITUTES & CROSS-REFERENCES 1
LS4565-115Reference 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 M8791/1-115?
M8791/1-115 is a RETAINER,PACKING.
What parts can replace M8791/1-115?
There is 1 known substitute for M8791/1-115: LS4565-115. Substitute compatibility should be verified for your specific system.
What is the NSN for M8791/1-115?
M8791/1-115 is cataloged in the U.S. Government catalog under NSN 5330-00-533-9161. This indicates validated use in U.S. government and defense supply chains.
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