The Thumbwheel, cataloged under National Stock Number 4920-01-109-8540, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Safe Flight Instrument, Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-109-8540 |
| Primary Part Number | 34521 |
| Item Name | Thumbwheel |
| FSC / FSG | 4920 / 49 — No Item Name Available |
| Manufacturer | Safe Flight Instrument, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | MATL: 303 STAINLESS STEEL; FINISH: PASSIVATE QQ-P-35; O/A DIM: 0.750 IN. DIA.,0.190 IN. H. IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 34521 PRIMARY | Safe Flight Instrument, Llc (USA) |
NSN 4920-01-109-8540 is a Thumbwheel, manufactured by Safe Flight Instrument, Llc, classified under FSC 4920 (No Item Name Available). Status: active.
NSN 4920-01-109-8540 has 1 cross-referenced part number: 34521 (Safe Flight Instrument, Llc).
There are 4 known substitutes for 4920-01-109-8540: 5310-00-171-3528, 3810-00-830-7758, 5995-01-468-8052 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 34521: General Characteristics Item Description: MATL: 303 STAINLESS STEEL; FINISH: PASSIVATE QQ-P-35; O/A DIM: 0.750 IN. DIA.,0.190 IN. H. IN; End Item Identification: A10A ACFT AGE.. 2 total characteristics are documented in the Federal Logistics Information System.