The Knob, cataloged under National Stock Number 5355-01-100-2083, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Leonardo S.p.a. - Electronics Division - Defence Business Area. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5355-01-100-2083 |
| Primary Part Number | 871MA0043 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Leonardo S.p.a. - Electronics Division - Defence Business Area |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.310 INCHES NOMINAL IN |
| Inside Width | 0.222 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN |
| Shaft Accommodation Style | FLATTED ONE SIDE |
| Overall Thickness | 0.620 INCHES NOMINAL IN |
| Style Designator | ROUND WITH SINGLE POINTED BAR FACE |
| Outside Diameter | 1.000 INCHES NOMINAL IN |
| Reference Marking | INDICATOR LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.164 INCHES SCREW HOLE IN |
| Inside Diameter | 0.253 INCHES NOMINAL IN |
| Pointer Design | NONDETACHABLE |
| Gripping Surface Condition | SMOOTH |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Attachment Method | SETSCREWS |
| 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 |
|---|---|
| 871MA0043 | Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA) |
| Reference | Meaning |
|---|---|
| BP247-A1G2 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
| 380-10033-7 | 7/2 Vendor item drawing reference U.S. Government activity |
| BP247-A1G2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-01-100-2083 is a Knob, manufactured by Leonardo S.p.a. - Electronics Division - Defence Business Area, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-100-2083 has 1 manufacturer part number on file: 871MA0043 (Leonardo S.p.a. - Electronics Division - Defence Business Area).
Key specifications for 871MA0043: Distance From Hole Center to Knob/skirt Base: 0.310 INCHES NOMINAL IN; Inside Width: 0.222 INCHES MINIMUM AND 0.224 INCHES MAXIMUM IN; Shaft Accommodation Style: FLATTED ONE SIDE; Overall Thickness: 0.620 INCHES NOMINAL IN. 16 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.