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Technical Data Sheet
400489 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SEAT,OIL PRESSURE RELIEF VALVE is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2945-00-784-4693, 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
400489
NSN: 2945-00-784-4693
FSC: 2945
CAGE: 2V116 — DEMUSZ MFG. CO., INC. (USA)
SPECIFICATIONS
general_characteristics_item_descriptionPLASTIC POLYHEXAMETHYLENE AMIDE,AMS 3617; 0.961 IN. MIN AND 0.967 IN. MAX OD; 0.266 IN. MIN AND 0.270 IN. MAX THK; 0.570 IN. MIN AND 0.590 IN. MAX ID IN
NSN2945-00-784-4693
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEAT,OIL PRESSURE RELIEF VALVE TITLE COMPONENT PN 400489 MFR SEAT,OIL PRESSURE RELI
KEY FEATURES
GENERAL CHARACTERISTICS ITEM DESCRIPTION: PLASTIC POLYHEXAMETHYLENE AMIDE,AMS 3617; 0.961 IN. MIN AND 0.967 IN. MAX OD; 0.266 IN. MIN AND 0.270 IN. MAX THK; 0.570 IN. MIN AND 0.590 IN. MAX ID IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONPLASTIC POLYHEXAMETHYLENE AMIDE,AMS 3617; 0.961 IN. MIN AND 0.967 IN. MAX OD; 0.266 IN. MIN AND 0.270 IN. MAX THK; 0.570 IN. MIN AND 0.590 IN. MAX ID IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
307Interchangeable
interchangeable cross-reference
interchangeable
704Interchangeable
interchangeable cross-reference
interchangeable
1809Interchangeable
interchangeable cross-reference
interchangeable
40089Interchangeable
interchangeable cross-reference
interchangeable
333989Interchangeable
interchangeable cross-reference
interchangeable
TB089Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 400489?
400489 is a SEAT,OIL PRESSURE RELIEF VALVE.
What parts can replace 400489?
There are 8 known substitutes for 400489: 307, 704, 1809 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 400489?
400489 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2945-00-784-4693. This indicates validated use in U.S. government and defense supply chains.
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