The Knob, cataloged under National Stock Number 5355-00-486-3239, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is L3 Technologies, Inc. Div Communication Systems-East. Government technical data includes 18 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 | 5355-00-486-3239 |
| Primary Part Number | 8509389-501 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | L3 Technologies, Inc. Div Communication Systems-East |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.185 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Length | 0.750 INCHES NOMINAL IN |
| Overall Thickness | 0.375 INCHES NOMINAL IN |
| Style Designator | BAR |
| Counterbore Depth | 0.030 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 1 |
| Nominal Thread Size | 0.138 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.437 INCHES NOMINAL IN |
| Inside Diameter | 0.312 INCHES NOMINAL IN |
| Gripping Surface Condition | SMOOTH |
| Color | GRAY/GREY |
| Width | 0.625 INCHES NOMINAL IN |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 32 SCREW HOLE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 8509389-501 PRIMARY | L3 Technologies, Inc. Div Communication Systems-East (USA) |
NSN 5355-00-486-3239 is a Knob, manufactured by L3 Technologies, Inc. Div Communication Systems-East, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-486-3239 has 1 manufacturer part number on file: 8509389-501 (L3 Technologies, Inc. Div Communication Systems-East).
Key specifications for 8509389-501: Distance From Hole Center to Knob/skirt Base: 0.185 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Length: 0.750 INCHES NOMINAL IN; Overall Thickness: 0.375 INCHES NOMINAL IN. 18 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.