The Rotor,pickup,tachometer, cataloged under National Stock Number 2990-01-139-0530, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Dynalec Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-139-0530 |
| Primary Part Number | PK22B |
| Item Name | Rotor,pickup,tachometer |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Dynalec Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL-STEEL; ZINC PLATED FINSISH; O/A 1.219 IN.; O/A W 0.625 IN. 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 |
|---|---|
| PK22B PRIMARY | Dynalec Corporation (USA) |
| Reference | Meaning |
|---|---|
| PK22B | 5/9 Secondary reference The Electric Tachometer Corp. |
NSN 2990-01-139-0530 is a Rotor,pickup,tachometer, manufactured by Dynalec Corporation, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-139-0530 has 1 manufacturer part number on file: PK22B (Dynalec Corporation).
Key specifications for PK22B: General Characteristics Item Description: MATERIAL-STEEL; ZINC PLATED FINSISH; O/A 1.219 IN.; O/A W 0.625 IN. IN; End Item Identification: PK2001-1 AND PK2003-1. 1 specification is 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.