The Circuit Card Assembly, cataloged under National Stock Number 5998-01-599-4600, 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 Black Box Corporation of Pennsylvania. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5998-01-599-4600 |
| Primary Part Number | SM978A |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Black Box Corporation of Pennsylvania |
| 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 | G |
| Part Number | Manufacturer |
|---|---|
| SM978A PRIMARY | Black Box Corporation of Pennsylvania (USA) |
NSN 5998-01-599-4600 is a Circuit Card Assembly, manufactured by Black Box Corporation of Pennsylvania, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-599-4600 has 1 manufacturer part number on file: SM978A (Black Box Corporation of Pennsylvania).
Key specifications for SM978A: Special Features: PRO SWITCHING SYSTEM PLUS A/B SWITCH CARD, RJ-45 CAT5; PROVIDES A/B SWITCHING BETWEEN RJ-45 TERMINATED CAT5 CIRCUITS; Part Name Assigned by Controlling Agency: A-B SWITCH CARD; End Item Identification: STANDARD TERMINAL AUTOMATION REPLACMENT SYSTEM (STARS). 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 5998-01-599-4600 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.