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Technical Data Sheet
5990-1 ✓ 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 SUPPORT,SEAT FITTIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, end_style: ONE HOOK END OVERALL, end_length: 0.625 INCHES NOMINAL BOTH ENDS IN, coil_quantity: 3 2/5, inside_diameter: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, style_designator: SINGLE TORSION RIGHT HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-500-2766, 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
5990-1
NSN: 5360-00-500-2766
FSC: 5360
CAGE: 56048 — ASSOCIATED SPRING CORP DIV OF THE BARNES GROUP INC DALLAS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
end_styleONE HOOK END OVERALL
end_length0.625 INCHES NOMINAL BOTH ENDS IN
coil_quantity3 2/5
inside_diameter0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
style_designatorSINGLE TORSION RIGHT HAND
center_loop_radius0.181 INCHES NOMINAL IN
spring_free_length1.200 INCHES MAXIMUM IN
center_section_width0.460 INCHES NOMINAL IN
end_angular_relationshipEND W/LH HELIX OF COIL PARALLEL TO CENTER SECTION AND END W/RH HELIX OF COIL PARALLEL TO CENTER SECTION
spring_free_outside_diameter0.392 INCHES MINIMUM AND 0.404 INCHES MAXIMUM IN
coil_axis_to_center_section_distance1.076 INCHES NOMINAL IN
NSN5360-00-500-2766
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SUPPORT,SEAT FITTIN TITLE COMPONENT PN 5990-1 MFR SUPPORT,SEAT FITTIN
KEY FEATURES
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5673,COMP 17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER LOOP RADIUS: 0.181 INCHES NOMINAL IN
END STYLE: ONE HOOK END OVERALL
STYLE DESIGNATOR: SINGLE TORSION RIGHT HAND
CENTER SECTION WIDTH: 0.460 INCHES NOMINAL IN
END LENGTH: 0.625 INCHES NOMINAL BOTH ENDS IN
MATERIAL: STEEL COMP 631 OVERALL
SPRING FREE LENGTH: 1.200 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5673,COMP 17-7PH ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER LOOP RADIUS0.181 INCHES NOMINAL IN
END STYLEONE HOOK END OVERALL
STYLE DESIGNATORSINGLE TORSION RIGHT HAND
CENTER SECTION WIDTH0.460 INCHES NOMINAL IN
END LENGTH0.625 INCHES NOMINAL BOTH ENDS IN
MATERIALSTEEL COMP 631 OVERALL
SPRING FREE LENGTH1.200 INCHES MAXIMUM IN
COIL QUANTITY3 2/5
COIL AXIS TO CENTER SECTION DISTANCE1.076 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5990Interchangeable
interchangeable cross-reference
interchangeable
5990-1Interchangeable
interchangeable cross-reference
interchangeable
40905Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5990-1?
5990-1 is a SUPPORT,SEAT FITTIN.
What parts can replace 5990-1?
There are 3 known substitutes for 5990-1: 5990, 5990-1, 40905. Substitute compatibility should be verified for your specific system.
What is the NSN for 5990-1?
5990-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5360-00-500-2766. This indicates validated use in U.S. government and defense supply chains.
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