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212439 — KEEPER,VALVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

212439: KEEPER,VALVE.

The KEEPER,VALVE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, surface_treatment: ANODIZE, end_item_identification: RESTRICTOR VALVE MODEL 21243-001; SEAWOLF CLASS SSN, general_characteristics_item_description: MATERIAL PER ASTM B150. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-271-6597, 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
212439
NSN: 5330-01-271-6597
NIINs: 012716597, 014152596
FSC: 5330 — Packing and Gasket Materials
CAGE: 50988 — DYNEX/RIVETT CORP POWER UNITS AND SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
surface_treatmentANODIZE
end_item_identificationRESTRICTOR VALVE MODEL 21243-001; SEAWOLF CLASS SSN
general_characteristics_item_descriptionMATERIAL PER ASTM B150
NSN5330-01-271-6597
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 212439 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 212439?
212439 is a KEEPER,VALVE.
What is the NSN for 212439?
212439 is cataloged in the U.S. Government catalog under NSN 5330-01-271-6597. This indicates validated use in U.S. government and defense supply chains.
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