The Circuit Card Assembly, cataloged under National Stock Number 5998-01-688-5855, 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 Rix Industries. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware (FSG 59) |
| Manufacturers | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division (CAGE 0ACF4); Rix Industries (CAGE 28953) |
| Parameter | Value |
|---|---|
| NSN | 5998-01-688-5855 |
| Primary Part Number | 76-21998 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Rix Industries |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| 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 |
|---|---|
| 6ED1055-1MD00-0BA2 | Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division (USA) |
| 76-21998 PRIMARY | Rix Industries (USA) |
| Reference | Meaning |
|---|---|
| 22003/SHT 1 ITEM 39 | C/1 Advisory reference — outside the item-of-supply concept Rix Industries |
| 22003 | D/9 Drawing number reference only Rix Industries |
NSN 5998-01-688-5855 is a Circuit Card Assembly, manufactured by Rix Industries, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-688-5855 has 2 manufacturer part numbers on file: 6ED1055-1MD00-0BA2 (Siemens Energy & Automation, Inc. Div Siemens Ind Services, Siemens Sales Division), 76-21998 (Rix Industries).
4 possible matches (shared part number, not a government interchangeability claim): 5998-01-688-5861, 5998-01-688-5863, 7025-01-688-6056. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.