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300-D-387 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

300-D-387: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, end_item_identification: DOUBLE TUBE AIR COOLER, material_document_and_classification: MIL-R-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL, part_name_assigned_by_controlling_agency: GASKET,RETURN WATERBOX. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-513-0865, 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
300-D-387
NSN: 5330-01-513-0865
FSC: 5330 — Packing and Gasket Materials
CAGE: 1MME1 — THERMAL ENGINEERING INTERNATIONAL (USA) INC. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
end_item_identificationDOUBLE TUBE AIR COOLER
material_document_and_classificationMIL-R-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyGASKET,RETURN WATERBOX
NSN5330-01-513-0865
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 300-D-387 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855,CL 1,GR 80 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYGASKET,RETURN WATERBOX
END ITEM IDENTIFICATIONDOUBLE TUBE AIR COOLER
MATERIALRUBBER SYNTHETIC 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 1
700-D-765 ITEM 7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 300-D-387?
300-D-387 is a GASKET.
What parts can replace 300-D-387?
There is 1 known substitute for 300-D-387: 700-D-765 ITEM 7. Substitute compatibility should be verified for your specific system.
What is the NSN for 300-D-387?
300-D-387 is cataloged in the U.S. Government catalog under NSN 5330-01-513-0865. This indicates validated use in U.S. government and defense supply chains.
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