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289978 — PARTS KIT,SEAL REPLACEMENT,MECHA

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

289978: PARTS KIT,SEAL REPLACEMENT,MECHA.

PARTS KIT,SEAL REPLACEMENT,MECHA. Key specifications include document_type: CATALOG SHEET, end_item_name: 1.5 INCH CHECK BALL VALVE IN, part_name_assigned_by_controlling_agency: CHECK VALVE REPAIR KIT. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-731-5387, 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
289978
NSN: 5330-01-731-5387
FSC: 5330 — Packing and Gasket Materials
CAGE: 1F2N2 — COONEY BROTHERS INC (USA)
SPECIFICATIONS
document_typeCATALOG SHEET
end_item_name1.5 INCH CHECK BALL VALVE IN
component_quantity5
part_name_assigned_by_controlling_agencyCHECK VALVE REPAIR KIT
NSN5330-01-731-5387
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 289978 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
•
COMPONENT QUANTITY: 5
•
DOCUMENT TYPE: CATALOG SHEET
•
END ITEM NAME: 1.5 INCH CHECK BALL VALVE IN
TECHNICAL CHARACTERISTICS
COMPONENT QUANTITY5
DOCUMENT TYPECATALOG SHEET
END ITEM NAME1.5 INCH CHECK BALL VALVE IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCHECK VALVE REPAIR KIT
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

No substitute or cross-reference records for this part.

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 289978?
289978 is a PARTS KIT,SEAL REPLACEMENT,MECHA.
What is the NSN for 289978?
289978 is cataloged in the U.S. Government catalog under NSN 5330-01-731-5387. 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.