The Knob, cataloged under National Stock Number 5355-01-087-6938, 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 Defense. Government technical data includes 10 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 | 5355-01-087-6938 |
| Primary Part Number | ST9M485-4-1 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Overall Thickness | 0.500 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Nominal Thread Size | 0.250 INCHES SCREW HOLE IN |
| Gripping Surface Condition | GRIP AID |
| Color | NATURAL |
| Thread Quantity Per Inch | 20 SCREW HOLE |
| Material | STEEL COMP 303 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SCREW HOLE |
| 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 |
|---|---|
| ST9M485-4-1 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5355-01-087-6938 is a Knob, manufactured by The Boeing Company Div Defense, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-087-6938 has 1 manufacturer part number on file: ST9M485-4-1 (The Boeing Company Div Defense).
Key specifications for ST9M485-4-1: Overall Thickness: 0.500 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 0.750 INCHES NOMINAL IN; Nominal Thread Size: 0.250 INCHES SCREW HOLE IN. 10 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.