The Knob,aircraft Seat, cataloged under National Stock Number 1680-01-528-5123, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 5 specifications, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-528-5123 |
| Primary Part Number | 859D10040-13 |
| Item Name | Knob,aircraft Seat |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Material Document and Classification | MIL-P-79 MIL STD SINGLE MATERIAL RESPONSE |
| Aircraft Location | PASSENGER SEAT |
| Material | PLASTIC PHENOLIC |
| Side for Which Designed | BOTH SIDES |
| Aircraft Mission Design Series | C-2A A |
| 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 |
|---|---|
| 859D10040-13 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 859D10040-13 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| 859D10040-13 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
| 859D10040 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 1680-01-528-5123 is a Knob,aircraft Seat, manufactured by Northrop Grumman Systems Corporation, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-528-5123 has 1 manufacturer part number on file: 859D10040-13 (Northrop Grumman Systems Corporation).
Key specifications for 859D10040-13: Material Document and Classification: MIL-P-79 MIL STD SINGLE MATERIAL RESPONSE; Overall Length: 0.750 INCHES NOMINAL IN; Overall Width: 0.750 INCHES NOMINAL IN; Special Features: MATERIAL LAM PHEN ROD. 5 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.
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.