The Circuit Card Assembly, cataloged under National Stock Number 5998-01-298-2175, 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 Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5998-01-298-2175 |
| Primary Part Number | 138439-1 |
| Item Name | Circuit Card Assembly |
| FSC / FSG | 5998 / 59 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware |
| Manufacturer | Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace |
| 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 | Z |
| Weight | 0.5000 lbs |
| Cube | 0.0452 cu ft |
| Part Number | Manufacturer |
|---|---|
| 138439-1 PRIMARY | Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 138439-1 | 3/9 Design control — primary reference Astronautics Corporation of America |
NSN 5998-01-298-2175 is a Circuit Card Assembly, manufactured by Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace, classified under FSC 5998, Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware. Status: active.
NSN 5998-01-298-2175 has 1 manufacturer part number on file: 138439-1 (Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace).
Key specifications for 138439-1: Special Features: PRINTED WIRING BOARD 1; CONNECTOR 1; MICROCIRCUIT 7; TRANSISTOR 1; RELAY 7; DIODE 6; CAPACITOR 19; RESISTOR 26; Part Name Assigned by Controlling Agency: FSC APPLICATION DATA: MODE SELECTOR PANEL; End Item Identification: MH-53E ACFT. 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 5998-01-298-2175 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.