The Alignment Tool,pulley, cataloged under National Stock Number 4920-01-146-2856, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Vitok Engineers Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-146-2856 |
| Primary Part Number | 2137-2B106 |
| Item Name | Alignment Tool,pulley |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Vitok Engineers Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CO2 REMOVAL PLANT MK-IV,ALIGNMENT GAGE,AG-1 FOR COMPRESSOR PULLEY; FLAT GROUND DIE STEEL; 26.250 IN. LG,1 IN. W,0.125 IN. THK 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 |
|---|---|
| 2137-2B106 PRIMARY | Vitok Engineers Inc (USA) |
| Reference | Meaning |
|---|---|
| 1031-B208 | C/1 Advisory reference — outside the item-of-supply concept Cepeda Associates, Inc. Dba Cepeda Associates Inc |
NSN 4920-01-146-2856 is a Alignment Tool,pulley, manufactured by Vitok Engineers Inc, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-146-2856 has 1 manufacturer part number on file: 2137-2B106 (Vitok Engineers Inc).
Key specifications for 2137-2B106: General Characteristics Item Description: CO2 REMOVAL PLANT MK-IV,ALIGNMENT GAGE,AG-1 FOR COMPRESSOR PULLEY; FLAT GROUND DIE STEEL; 26.250 IN. LG,1 IN. W,0.125 IN. THK IN; End Item Identification: CO2 SCRUBBER,FSCM 51005. 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.