The Circuit Card Assembly, cataloged under National Stock Number 5998-01-424-3955, 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 Ems Technologies Inc Div Defense & Space Systems. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5998-01-424-3955 |
| Primary Part Number | 186937-1 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Ems Technologies Inc Div Defense & Space Systems |
| Status | ACTIVE |
| Criticality Code Justification | CBBL |
| Features Provided | ELECTROSTATIC SENSITIVE |
| 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 | Y |
| Unit of Issue | EA |
| Acquisition advice code | MT |
| Weight | 1.5000 lbs |
| Cube | 0.2552 cu ft |
| Part Number | Manufacturer |
|---|---|
| 186937-1 PRIMARY | Ems Technologies Inc Div Defense & Space Systems (USA) |
| 184971-1 | Ems Technologies Inc Div Defense & Space Systems (USA) |
| Reference | Meaning |
|---|---|
| 180059-1 | 5/9 Secondary reference Ems Technologies Inc Div Defense & Space Systems |
| 180059-01 | 5/9 Secondary reference Ems Technologies Inc Div Defense & Space Systems |
NSN 5998-01-424-3955 is a Circuit Card Assembly, manufactured by Ems Technologies Inc Div Defense & Space Systems, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-424-3955 has 2 manufacturer part numbers on file: 186937-1 (Ems Technologies Inc Div Defense & Space Systems), 184971-1 (Ems Technologies Inc Div Defense & Space Systems).
1 possible match (shared part number, not a government interchangeability claim): 5325-01-666-0777. Verify interchangeability with system specifications before substitution.
Key specifications for 186937-1: Criticality Code Justification: CBBL; Features Provided: ELECTROSTATIC SENSITIVE; Part Name Assigned by Controlling Agency: CIRCUIT CARD ASSY, LRU-15 OVER-TEMP LOGIC BD; End Item Identification: AN/ALQ-172, AC130H LOW BAND PME. 2 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 5998-01-424-3955 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.