The Knob, cataloged under National Stock Number 5355-00-528-5129, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Instrument Systems Corp. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-528-5129 |
| Primary Part Number | K235A010-2 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Instrument Systems Corp |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.187 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.440 INCHES NOMINAL IN |
| Style Designator | FLUTED FOILS |
| Counterbore Depth | 0.062 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Counterbore Diameter | 0.270 INCHES NOMINAL IN |
| Inside Diameter | 0.189 INCHES MINIMUM AND 0.191 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Width | 0.500 INCHES NOMINAL IN |
| Material | PLASTIC |
| Attachment Method | SETSCREWS |
| Fluted Foil Quantity | 12 |
| 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 |
|---|---|
| K235A010-2 PRIMARY | Instrument Systems Corp (USA) |
| Reference | Meaning |
|---|---|
| 270D123-2 | 5/9 Secondary reference Instrument Systems Corp |
| 270D152-2 | 5/9 Secondary reference Instrument Systems Corp |
NSN 5355-00-528-5129 is a Knob, manufactured by Instrument Systems Corp, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-528-5129 has 1 manufacturer part number on file: K235A010-2 (Instrument Systems Corp).
Key specifications for K235A010-2: Distance From Hole Center to Knob/skirt Base: 0.187 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.440 INCHES NOMINAL IN; Style Designator: FLUTED FOILS. 13 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.