The Circuit Card Assembly, cataloged under National Stock Number 5998-01-571-3897, 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 Microsemi Corp - Massachusetts. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5998-01-571-3897 |
| Primary Part Number | BC635PCI-U |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Microsemi Corp - Massachusetts |
| 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 |
|---|---|
| BC635PCI-U PRIMARY | Microsemi Corp - Massachusetts (USA) |
| BC635PCI-U | Symmetricom Inc Navsymm Div (USA) |
| Reference | Meaning |
|---|---|
| 2188897 | 5/9 Secondary reference Vaisala Inc. |
NSN 5998-01-571-3897 is a Circuit Card Assembly, manufactured by Microsemi Corp - Massachusetts, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-571-3897 has 2 manufacturer part numbers on file: BC635PCI-U (Microsemi Corp - Massachusetts), BC635PCI-U (Symmetricom Inc Navsymm Div).
Key specifications for BC635PCI-U: Special Features: NSN CONSISTS OF CARD P/N BC635PCI-U AND CABLE BC11575-1000. ENSURE CABLE IS SENT WITH CARD WHEN PERFORMING FIELD REPLACEMENT; Part Name Assigned by Controlling Agency: PCI TIME RECEIVER CARD (CCA); End Item Identification: PC-RVR. 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 5998-01-571-3897 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.