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123SME90021-31 — CASE ASSEMBLY

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

123SME90021-31: CASE ASSEMBLY.

The CASE ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: E2-D ADVANCED HAWKEYE TACTICAL EARLY WARNING ROTODOME, part_name_assigned_by_controlling_agency: CASE ASSEMBLY 2. This part is cataloged in the U.S.

Government catalog under NSN 1680-01-620-7040, 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
123SME90021-31
NSN: 1680-01-620-7040
FSC: 1680 — Miscellaneous Aircraft Accessories and Components
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
end_item_identificationE2-D ADVANCED HAWKEYE TACTICAL EARLY WARNING ROTODOME
part_name_assigned_by_controlling_agencyCASE ASSEMBLY 2
NSN1680-01-620-7040
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CASE ASSEMBLY TITLE COMPONENT PN 123SME90021-31 MFR CASE ASSEMBLY
TECHNICAL CHARACTERISTICS
PART NAME ASSIGNED BY CONTROLLING AGENCYCASE ASSEMBLY 2
END ITEM IDENTIFICATIONE2-D ADVANCED HAWKEYE TACTICAL EARLY WARNING ROTODOME
OTHER ITEMS IN FSC 1680 — Miscellaneous Aircraft Accessories and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1680-00-001-1736 1680-00-003-3721 1680-00-009-3782 1680-00-009-6180 1680-00-475-0002 1680-00-696-6170 1680-00-867-7158 1680-00-885-0923
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 123SME90021-31?
123SME90021-31 is a CASE ASSEMBLY.
What is the NSN for 123SME90021-31?
123SME90021-31 is cataloged in the U.S. Government catalog under NSN 1680-01-620-7040. 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.