The Circuit Card Assembly, cataloged under National Stock Number 5998-01-550-9804, 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 Symmetricom, Inc. The record lists 2 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 | 5998-01-550-9804 |
| Primary Part Number | 87-8017 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Symmetricom, Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Shelf Life Code | 0 |
| Criticality Code | X |
| Unit of Issue | EA |
| Acquisition advice code | CL |
| Part Number | Manufacturer |
|---|---|
| 87-8017 PRIMARY | Symmetricom, Inc (USA) |
| 4303240-104 | Northrop Grumman Systems Corporation (USA) |
NSN 5998-01-550-9804 is a Circuit Card Assembly, manufactured by Symmetricom, Inc, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-550-9804 has 2 manufacturer part numbers on file: 87-8017 (Symmetricom, Inc), 4303240-104 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-611-6658. Verify interchangeability with system specifications before substitution.
Key specifications for 87-8017: Part Name Assigned by Controlling Agency: NTS ON STD ETHERNET NWT PORT; End Item Identification: XLI TIME DISTRIBUTION ASSEMBLY PART NO. 4303240. 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 5998-01-550-9804 has DEMIL Code D. 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.