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Technical Data Sheet
PartsTable / COMPONENT / 637477
637477 ✓ 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 COVER,VALVE is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, temp_rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 7.214 INCHES MINIMUM AND 7.310 INCHES MAXIMUM IN, center_hole_diameter: 6.961 INCHES MINIMUM AND 7.007 INCHES MAXIMUM IN, elongation_percentage: 331 MAXIMUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2840-00-775-4009, 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
637477
NSN: 2840-00-775-4009
FSC: 2840
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
temp_rating-30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
hardness_rating70.0 SHORE DUROMETER A NOMINAL
outside_diameter7.214 INCHES MINIMUM AND 7.310 INCHES MAXIMUM IN
center_hole_diameter6.961 INCHES MINIMUM AND 7.007 INCHES MAXIMUM IN
elongation_percentage331 MAXIMUM
cross-sectional_height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
NSN2840-00-775-4009
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available COVER,VALVE TITLE COMPONENT PN 637477 MFR COVER,VALVE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
00655177363Interchangeable
interchangeable cross-reference
interchangeable
AS568-262Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 637477?
637477 is a COVER,VALVE.
What parts can replace 637477?
There are 2 known substitutes for 637477: 00655177363, AS568-262. Substitute compatibility should be verified for your specific system.
What is the NSN for 637477?
637477 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2840-00-775-4009. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026