The Control Box,bleed Air, cataloged under National Stock Number 1680-01-125-8526, 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-125-8526 |
| Primary Part Number | 4438-9 |
| Item Name | Control Box,bleed Air |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Meggitt Safety Systems Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 8.500 IN. NOM LG; 5.500 IN. NOM W; 3.530 IN. NOM H IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 4438-9 PRIMARY | Meggitt Safety Systems Inc (USA) |
NSN 1680-01-125-8526 is a Control Box,bleed Air, manufactured by Meggitt Safety Systems Inc, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-125-8526 has 1 manufacturer part number on file: 4438-9 (Meggitt Safety Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-424-3746. Verify interchangeability with system specifications before substitution.
Key specifications for 4438-9: General Characteristics Item Description: 8.500 IN. NOM LG; 5.500 IN. NOM W; 3.530 IN. NOM H IN. 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.
NSN 1680-01-125-8526 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.