The Knob, cataloged under National Stock Number 5355-01-255-0237, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5355-01-255-0237 |
| Primary Part Number | 5M2505-001 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.075 INCHES NOMINAL IN |
| Overall Thickness | 0.250 INCHES NOMINAL IN |
| Style Designator | ROUND |
| Outside Diameter | 0.750 INCHES NOMINAL IN |
| Setscrew Hole Quantity | 2 |
| Nominal Thread Size | 0.112 INCHES SCREW HOLE IN |
| Gripping Surface Condition | SMOOTH |
| Color | RED |
| Screw Drive Type | HEXAGON SOCKET |
| Thread Quantity Per Inch | 40 SCREW HOLE |
| Material | PLASTIC |
| 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 |
|---|---|
| 5M2505-001 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| SA476-102 | 3/2 Design control — primary reference U.S. Government activity |
| SA476-102 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
NSN 5355-01-255-0237 is a Knob, manufactured by The Boeing Company Div Defense, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-255-0237 has 1 manufacturer part number on file: 5M2505-001 (The Boeing Company Div Defense).
Key specifications for 5M2505-001: Distance From Hole Center to Knob/skirt Base: 0.075 INCHES NOMINAL IN; Overall Thickness: 0.250 INCHES NOMINAL IN; Style Designator: ROUND; Outside Diameter: 0.750 INCHES NOMINAL IN. 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.