The Knob, cataloged under National Stock Number 5355-01-198-8588, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5355-01-198-8588 |
| Primary Part Number | HS4160-102 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.250 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.560 INCHES NOMINAL IN |
| Material Transparency | CLEAR |
| Style Designator | ROUND WITH BAR FACE |
| Outside Diameter | 0.880 INCHES NOMINAL IN |
| Counterbore Depth | 0.100 INCHES NOMINAL IN |
| Reference Marking | INDICATOR LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.255 INCHES NOMINAL IN |
| Inside Diameter | 0.128 INCHES NOMINAL IN |
| Gripping Surface Condition | SMOOTH |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 40 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 |
|---|---|
| HS4160-102 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| HS4160-102 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
| BP247-A1B3 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
| BP247-A1B3 | 5/2 Secondary reference U.S. Government activity |
NSN 5355-01-198-8588 is a Knob, manufactured by The Boeing Company, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-198-8588 has 1 manufacturer part number on file: HS4160-102 (The Boeing Company).
Key specifications for HS4160-102: Distance From Hole Center to Knob/skirt Base: 0.250 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.560 INCHES NOMINAL IN; Material Transparency: CLEAR. 17 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.