The Knob, cataloged under National Stock Number 5355-00-124-5990, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-124-5990 |
| Primary Part Number | 140-43049 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Shank Diameter | 2.000 INCHES NOMINAL IN |
| Overall Thickness | 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Shank Length | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Style Designator | ROUND |
| Outside Diameter | 2.500 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES RECEPTACLE IN |
| Shank Style | STRAIGHT |
| Gripping Surface Condition | GRIP AID |
| Color | NATURAL |
| Thread Quantity Per Inch | 28 RECEPTACLE |
| Material | ALUMINUM ALLOY |
| Thread Series Designator | UNF RECEPTACLE |
| Attachment Method | SCREW ON |
| 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 |
|---|---|
| 140-43049 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 5355-00-124-5990 is a Knob, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-124-5990 has 1 manufacturer part number on file: 140-43049 (The Boeing Company Div Legacy Am&m).
Key specifications for 140-43049: Shank Diameter: 2.000 INCHES NOMINAL IN; Overall Thickness: 0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN; Shank Length: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Style Designator: ROUND. 13 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.