The Circuit Card Assembly, cataloged under National Stock Number 5998-01-683-8931, is classified within Federal Supply Class 5998 (Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Crystal Group, Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5998-01-683-8931 |
| Primary Part Number | MEM-00121 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Crystal Group, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | J |
| Part Number | Manufacturer |
|---|---|
| MEM-00121 PRIMARY | Crystal Group, Inc (USA) |
| Reference | Meaning |
|---|---|
| 283616 | D/9 Drawing number reference only Argon St, Inc. |
NSN 5998-01-683-8931 is a Circuit Card Assembly, manufactured by Crystal Group, Inc, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-683-8931 has 1 manufacturer part number on file: MEM-00121 (Crystal Group, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5998-01-683-8932, 6120-01-684-2954. Verify interchangeability with system specifications before substitution.
Key specifications for MEM-00121: Part Name Assigned by Controlling Agency: CARD,CURCUIT ASSEMBLY; End Item Identification: SERVER UNIT,BACKUP. 0 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5998-01-683-8931 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.