The Disc Assembly, cataloged under National Stock Number 1680-01-042-6406, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Meggitt Safety Systems Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1680-01-042-6406 |
| Primary Part Number | 33440030 |
| Item Name | Disc Assembly |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | RING,RUPTURE STEEL; DISC,RUPTURE NICKEL ALLOY 625; PRESSURE WITH HELLIUM TO 3020 PSI |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 33440030 PRIMARY | Meggitt Safety Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 33440030 | 5/9 Secondary reference Meggitt Safety Systems, Inc. Dba Meggitt Control Systems-Ventura County |
NSN 1680-01-042-6406 is a Disc Assembly, manufactured by Meggitt Safety Systems Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-042-6406 has 1 manufacturer part number on file: 33440030 (Meggitt Safety Systems Inc).
Key specifications for 33440030: General Characteristics Item Description: RING,RUPTURE STEEL; DISC,RUPTURE NICKEL ALLOY 625; PRESSURE WITH HELLIUM TO 3020 PSI; End Item Identification: AIRCRAFT MODEL F-14A A. 1 specification is 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.
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.