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Technical Data Sheet

M8791/1-326 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M8791/1-326: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-PERIPHERAL OVERALL, center_hole_diameter: 1.622 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN, cross-sectional_height: 0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR, material_document_and_classification: MIL-R-8791/1-326 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-413-2087, 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
M8791/1-326
NSN: 5330-01-413-2087
FSC: 5330 — Packing and Gasket Materials
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
center_hole_diameter1.622 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
cross-sectional_height0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationMIL-R-8791/1-326 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-413-2087
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M8791/1-326 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: 0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791/1-326 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
CENTER HOLE DIAMETER: 1.622 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.086 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791/1-326 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
CENTER HOLE DIAMETER1.622 INCHES MINIMUM AND 1.624 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE 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 4
2643-852-01 ITEM 45Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5D3-03870-7Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
845-7286652 ITEM 45Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 M8791/1-326?
M8791/1-326 is a RETAINER,PACKING.
What parts can replace M8791/1-326?
There are 4 known substitutes for M8791/1-326: 2643-852-01 ITEM 45, 5D3-03870-7, 845-7286652 ITEM 45 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M8791/1-326?
M8791/1-326 is cataloged in the U.S. Government catalog under NSN 5330-01-413-2087. This indicates validated use in U.S. government and defense supply chains.
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