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B2990 — STUD,RECESSED

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B2990: STUD,RECESSED.

The STUD,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, thread_class: 3A STUD THREAD A, thread_length: 0.940 INCHES NOMINAL STUD THREAD IN, overall_length: 2.025 INCHES NOMINAL IN, inside_diameter: 0.688 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5360-00-597-1795, 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
B2990
NSN: 5360-00-597-1795
NIINs: 005971795, 009971932
FSC: 5360 — Coil, Flat, Leaf, and Wire Springs
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
thread_class3A STUD THREAD A
thread_length0.940 INCHES NOMINAL STUD THREAD IN
overall_length2.025 INCHES NOMINAL IN
inside_diameter0.688 INCHES NOMINAL IN
style_designatorRECESSED
thread_directionRIGHT-HAND STUD THREAD
surface_treatmentCADMIUM OVERALL
spring_free_length3.438 INCHES NOMINAL IN
nominal_thread_size0.500 INCHES STUD THREAD IN
spring_solid_length0.719 INCHES NOMINAL IN
NSN5360-00-597-1795
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available STUD,RECESSED TITLE COMPONENT PN B2990 MFR STUD,RECESSED
KEY FEATURES
•
SPRING FREE OUTSIDE DIAMETER: 0.813 INCHES NOMINAL IN
•
END STYLE: SPRING END,SQUARED AND GROUND BOTH ENDS
•
SPRING SOLID LENGTH: 0.719 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: N,22-W-11C MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
SPRING FREE LENGTH: 3.438 INCHES NOMINAL IN
•
SPRING DEFLECTION RATE: 4.200 POUNDS PER INCH NOMINAL LBS
•
INSIDE DIAMETER: 0.688 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPRING FREE OUTSIDE DIAMETER0.813 INCHES NOMINAL IN
END STYLESPRING END,SQUARED AND GROUND BOTH ENDS
SPRING SOLID LENGTH0.719 INCHES NOMINAL IN
STYLE DESIGNATORCYLINDRICAL
MATERIAL DOCUMENT AND CLASSIFICATIONN,22-W-11C MFR REF SINGLE MATERIAL RESPONSE OVERALL
SPRING FREE LENGTH3.438 INCHES NOMINAL IN
SPRING DEFLECTION RATE4.200 POUNDS PER INCH NOMINAL LBS
INSIDE DIAMETER0.688 INCHES NOMINAL IN
COIL HELIX DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
2990Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
N30939PC5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B2990?
B2990 is a STUD,RECESSED.
What parts can replace B2990?
There are 2 known substitutes for B2990: 2990, N30939PC5. Substitute compatibility should be verified for your specific system.
What is the NSN for B2990?
B2990 is cataloged in the U.S. Government catalog under NSN 5360-00-597-1795. 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.