The Knob, cataloged under National Stock Number 5355-01-028-0845, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Te Connectivity Corporation. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-028-0845 |
| Primary Part Number | PK-50B-1/8 BLAC |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Te Connectivity Corporation |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.200 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.520 INCHES NOMINAL IN |
| Skirt Outside Diameter | 0.748 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.550 INCHES NOMINAL IN |
| Counterbore Depth | 0.055 INCHES NOMINAL IN |
| Reference Marking | DOT |
| Setscrew Hole Quantity | 1 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.461 INCHES NOMINAL IN |
| Inside Diameter | 0.125 INCHES NOMINAL IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| Skirt Design | NONDETACHABLE |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 40 SCREW HOLE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| Skirt Style | FLARED |
| 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 |
|---|---|
| PK-50B-1/8 BLAC PRIMARY | Te Connectivity Corporation (USA) |
| Reference | Meaning |
|---|---|
| PK-50B-1/8 | 5/9 Secondary reference U.S. Government activity |
NSN 5355-01-028-0845 is a Knob, manufactured by Te Connectivity Corporation, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-028-0845 has 1 manufacturer part number on file: PK-50B-1/8 BLAC (Te Connectivity Corporation).
Key specifications for PK-50B-1/8 BLAC: Distance From Hole Center to Knob/skirt Base: 0.200 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.520 INCHES NOMINAL IN; Skirt Outside Diameter: 0.748 INCHES NOMINAL IN. 20 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.