The Kit,spring Gage, cataloged under National Stock Number 4820-01-133-2437, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-133-2437 |
| Primary Part Number | CKR20A |
| Item Name | Kit,spring Gage |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America |
| Status | ACTIVE |
| General Characteristics Item Description | APPL TO REGULATOR,GAGE P/N R20-06G,FSC 4820,NOT STOCKED; END ITEM P/N A/F37A-T55,NSN 6930010503625 G |
| 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 |
|---|---|
| CKR20A PRIMARY | Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America (USA) |
| Reference | Meaning |
|---|---|
| CKR20A | 5/9 Secondary reference Watts Regulator Company |
NSN 4820-01-133-2437 is a Kit,spring Gage, manufactured by Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-133-2437 has 1 manufacturer part number on file: CKR20A (Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America).
Key specifications for CKR20A: General Characteristics Item Description: APPL TO REGULATOR,GAGE P/N R20-06G,FSC 4820,NOT STOCKED; END ITEM P/N A/F37A-T55,NSN 6930010503625 G; End Item Identification: TRAINER,FLIGHT SIMULATOR. 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.