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7346MT-987-4780 — PACKING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7346MT-987-4780: PACKING ASSEMBLY.

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.424 INCHES NOMINAL IN, material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING, joint_type: SCARF-PERIPHERAL RETAINER, inside_diameter: 4.121 INCHES NOMINAL IN, outside_diameter: 4.493 INCHES NOMINAL IN, special_features: GLAND DIMENSIONS PER(5F573)-346 AGT-RING PISTON SEAL REQUIREMENTS. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-478-4085, 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
7346MT-987-4780
NSN: 5330-01-478-4085
FSC: 5330 — Packing and Gasket Materials
CAGE: 5F573 — GREENE TWEED & CO INC (USA)
SPECIFICATIONS
height0.424 INCHES NOMINAL IN
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
joint_typeSCARF-PERIPHERAL RETAINER
inside_diameter4.121 INCHES NOMINAL IN
outside_diameter4.493 INCHES NOMINAL IN
special_featuresGLAND DIMENSIONS PER(5F573)-346 AGT-RING PISTON SEAL REQUIREMENTS
end_item_identificationC-5 AIRCRAFT
cross-sectional_shape_styleTEE PACKING
material_document_and_classification(5F573)COMPOUND 987 MFR REF SINGLE MATERIAL RESPONSE PACKING
part_name_assigned_by_controlling_agencyAEROSPACE GT RING
NSN5330-01-478-4085
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7346MT-987-4780 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
•
OUTSIDE DIAMETER: 4.493 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
•
CROSS-SECTIONAL SHAPE STYLE: TEE PACKING
•
INSIDE DIAMETER: 4.121 INCHES NOMINAL IN
•
HEIGHT: 0.424 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER4.493 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATION(5F573)COMPOUND 987 MFR REF SINGLE MATERIAL RESPONSE PACKING
CROSS-SECTIONAL SHAPE STYLETEE PACKING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR RETAINER
INSIDE DIAMETER4.121 INCHES NOMINAL IN
HEIGHT0.424 INCHES NOMINAL IN
SPECIAL FEATURESGLAND DIMENSIONS PER(5F573)-346 AGT-RING PISTON SEAL REQUIREMENTS
PART NAME ASSIGNED BY CONTROLLING AGENCYAEROSPACE GT RING
END ITEM IDENTIFICATIONC-5 AIRCRAFT
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
37022-346-02-FMTSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7346MT-987-4780?
7346MT-987-4780 is a PACKING ASSEMBLY.
What parts can replace 7346MT-987-4780?
There is 1 known substitute for 7346MT-987-4780: 37022-346-02-FMT. Substitute compatibility should be verified for your specific system.
What is the NSN for 7346MT-987-4780?
7346MT-987-4780 is cataloged in the U.S. Government catalog under NSN 5330-01-478-4085. This indicates validated use in U.S. government and defense supply chains.
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