The Knob, cataloged under National Stock Number 5355-01-129-4531, is classified within Federal Supply Class 5355 (Knobs and Pointers) of the Hardware and Abrasives group. The manufacturer of record is Electronic Hardware Corp Dba Electronic Hardware Corp. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5355-01-129-4531 |
| Primary Part Number | 27-00641-1 |
| Item Name | Knob |
| FSC / FSG | 5355 / 53 — Knobs and Pointers |
| Manufacturer | Electronic Hardware Corp Dba Electronic Hardware Corp |
| Status | ACTIVE |
| Distance From Hole Center to Knob/skirt Base | 0.310 INCHES NOMINAL IN |
| Reference Marking | INDEX LINE |
| Setscrew Hole Quantity | 2 |
| Inside Diameter | 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN |
| 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 |
|---|---|
| ST5M1566-003 | The Boeing Company Div Defense (USA) |
| 27-00641-1 PRIMARY | Electronic Hardware Corp Dba Electronic Hardware Corp (USA) |
| Reference | Meaning |
|---|---|
| RD239-NG2 | 5/9 Secondary reference Dupree Inc Aerospace Knob Co Div |
| 10117840 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| RD239-NG2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5355-01-129-4531 is a Knob, manufactured by Electronic Hardware Corp Dba Electronic Hardware Corp, classified under FSC 5355, Knobs and Pointers. Status: active.
NSN 5355-01-129-4531 has 2 manufacturer part numbers on file: ST5M1566-003 (The Boeing Company Div Defense), 27-00641-1 (Electronic Hardware Corp Dba Electronic Hardware Corp).
Key specifications for 27-00641-1: Distance From Hole Center to Knob/skirt Base: 0.310 INCHES NOMINAL IN; Reference Marking: INDEX LINE; Setscrew Hole Quantity: 2; Inside Diameter: 0.252 INCHES MINIMUM AND 0.254 INCHES MAXIMUM IN. 4 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.