The Knob, cataloged under National Stock Number 5355-00-252-9481, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Astronics Test Systems Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-00-252-9481 |
| Primary Part Number | 2780-0023 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Astronics Test Systems Inc |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.153 INCHES NOMINAL IN |
| Shaft Accommodation Style | COUNTERBORED |
| Overall Thickness | 0.483 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.510 INCHES NOMINAL IN |
| Counterbore Depth | 0.050 INCHES NOMINAL IN |
| Reference Marking | LINE |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Counterbore Diameter | 0.390 INCHES NOMINAL IN |
| Inside Diameter | 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Gripping Surface Condition | GRIP AID |
| Color | BLACK |
| 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 |
|---|---|
| 2780-0023 | Astronics Test Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| RB67-0DC | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 15400-068 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| RB67-0ML | 3/2 Design control — primary reference U.S. Government activity |
| 2780-0023 | 5/9 Secondary reference Cushman Electronics Inc |
NSN 5355-00-252-9481 is a Knob, manufactured by Astronics Test Systems Inc, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-00-252-9481 has 1 manufacturer part number on file: 2780-0023 (Astronics Test Systems Inc).
Key specifications for 2780-0023: Distance From Hole Center to Knob/skirt Base: 0.153 INCHES NOMINAL IN; Shaft Accommodation Style: COUNTERBORED; Overall Thickness: 0.483 INCHES NOMINAL IN; Style Designator: ROUND. 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.