PartsTable
Technical Data Sheet

MIL-R-8791/1-343 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

MIL-R-8791/1-343: 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: 4.111 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN, center_hole_diameter: 3.747 INCHES NOMINAL IN, cross-sectional_height: 0.182 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-397-6867, 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
MIL-R-8791/1-343
NSN: 5330-01-397-6867
FSC: 5330 — Packing and Gasket Materials
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
peripheral_diameter4.111 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN
center_hole_diameter3.747 INCHES NOMINAL IN
cross-sectional_height0.182 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-397-6867
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: MIL-R-8791/1-343 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: 0.182 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 4.111 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.747 INCHES NOMINAL IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.182 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-AS8791 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER4.111 INCHES MINIMUM AND 4.115 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.747 INCHES NOMINAL 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
SAE-AS8791/1Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS8791Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
M8791/1-343Reference document
Same NSN cross-reference
Reference document — Secondary reference
5041-2343Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy MIL-R-8791/1-343?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MIL-R-8791/1-343?
MIL-R-8791/1-343 is a RETAINER,PACKING.
What parts can replace MIL-R-8791/1-343?
There are 4 known substitutes for MIL-R-8791/1-343: SAE-AS8791/1, SAE-AS8791, M8791/1-343 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-R-8791/1-343?
MIL-R-8791/1-343 is cataloged in the U.S. Government catalog under NSN 5330-01-397-6867. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MIL-R-8791/1-343