The Conic Back Flange, cataloged under National Stock Number 5820-01-032-8804, is classified within Federal Supply Class 5820 (Radio and Television Communication Equipment, Except Airborne) of the Communication, Detection, and Coherent Radiation Equipment group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5820-01-032-8804 |
| Primary Part Number | C20-2-2SQ |
| Item Name | Conic Back Flange |
| FSC / FSG | 5820 / 58 — Radio and Television Communication Equipment, Except Airborne |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| C20-2-2SQ | Naval Inventory Control Point Mechanicsburg (USA) |
| 03400005SQ | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 03400005 | 3/9 Design control — primary reference U.S. Government activity |
| 03400004 REV C ITEM NO.1 | D/9 Drawing number reference only U.S. Government activity |
| C20-2-2 | 5/1 Secondary reference U.S. Government activity |
| 03400005 | 3/1 Design control — primary reference U.S. Government activity |
| 03400004-ITEM NO-1 | D/9 Drawing number reference only U.S. Government activity |
NSN 5820-01-032-8804 is a Conic Back Flange, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5820, Radio and Television Communication Equipment, Except Airborne. Status: active.
NSN 5820-01-032-8804 has 2 manufacturer part numbers on file: C20-2-2SQ (Naval Inventory Control Point Mechanicsburg), 03400005SQ (Naval Inventory Control Point Mechanicsburg).
Key specifications for C20-2-2SQ: Criticality Code Justification: ZZZY; End Item Identification: ANTENNA TRANSFER ASSEMBLY; Reference Number Differentiating Characteristics: QUALITY ASSURANCE TESTED FOR SUBMARINE ANTENNA APPLICATION. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5820-01-032-8804 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.