The Circuit Card Assembly, cataloged under National Stock Number 5998-01-559-9747, 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 Naval Undersea Warfare Ctr. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares 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 | 5998-01-559-9747 |
| Primary Part Number | TSS/A4978-86014 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Naval Undersea Warfare Ctr |
| 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 | HM |
| Part Number | Manufacturer |
|---|---|
| A4978-86014 | Naval Undersea Warfare Ctr (USA) |
| 7504977 | Naval Undersea Warfare Ctr (USA) |
| TSS/A4978-86014 PRIMARY | Naval Undersea Warfare Ctr (USA) |
NSN 5998-01-559-9747 is a Circuit Card Assembly, manufactured by Naval Undersea Warfare Ctr, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-559-9747 has 3 manufacturer part numbers on file: A4978-86014 (Naval Undersea Warfare Ctr), 7504977 (Naval Undersea Warfare Ctr), TSS/A4978-86014 (Naval Undersea Warfare Ctr).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-560-8223. Verify interchangeability with system specifications before substitution.
Key specifications for TSS/A4978-86014: Part Name Assigned by Controlling Agency: (INAVY)SYS BD COOLING FAN; End Item Identification: GENERAL PURPOSE PROCESSING RACK(V)1, TRIDENT/GPPR;CP2336(V)1A/BYQ-6(V), TRIDENT COMPUTER WORKSTATION/COMPUTER WORKSTATION A. 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.
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.