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920327-346-2 — PACKING WITH RETAINER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

920327-346-2: PACKING WITH RETAINER.

The PACKING WITH RETAINER is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE RETAINER, construction: TWO-PIECE, outside_diameter: 4.493 INCHES NOMINAL IN, retainer_thickness: 0.424 INCHES NOMINAL IN, packing_inside_diameter: 4.121 INCHES NOMINAL IN, material_document_and_classification: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-347-8286, 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
920327-346-2
NSN: 5330-01-347-8286
FSC: 5330 — Packing and Gasket Materials
CAGE: 0UES3 — MID-AMERICA AEROTECH, LLC (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE RETAINER
constructionTWO-PIECE
outside_diameter4.493 INCHES NOMINAL IN
retainer_thickness0.424 INCHES NOMINAL IN
packing_inside_diameter4.121 INCHES NOMINAL IN
material_document_and_classificationMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
NSN5330-01-347-8286
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 920327-346-2 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
•
PACKING INSIDE DIAMETER: 4.121 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 4.493 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
•
RETAINER THICKNESS: 0.424 INCHES NOMINAL IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
•
CONSTRUCTION: TWO-PIECE
TECHNICAL CHARACTERISTICS
PACKING INSIDE DIAMETER4.121 INCHES NOMINAL IN
OUTSIDE DIAMETER4.493 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-H-83282 MIL SPEC SINGLE MATERIAL RESPONSE PACKING
RETAINER THICKNESS0.424 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE RETAINER
CONSTRUCTIONTWO-PIECE
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 1
7346MT-964-5708Reference document
Same NSN cross-reference
Reference document — Secondary 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 920327-346-2?
920327-346-2 is a PACKING WITH RETAINER.
What parts can replace 920327-346-2?
There is 1 known substitute for 920327-346-2: 7346MT-964-5708. Substitute compatibility should be verified for your specific system.
What is the NSN for 920327-346-2?
920327-346-2 is cataloged in the U.S. Government catalog under NSN 5330-01-347-8286. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.