The Primary Press Regul, cataloged under National Stock Number 1680-01-561-2501, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc.. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Primary Press Regul |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc. (CAGE 04836); Meggitt North Hollywood Inc (CAGE 79318); Pacific Scientific Company Dba Pacific Scientific Co Div Services at Support Operations (CAGE 1B1H6); Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (CAGE 70974) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-561-2501 |
| Primary Part Number | 422505-1 |
| Item Name | Primary Press Regul |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 422505-1 PRIMARY | Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc. (USA) |
| 422505-1 PRIMARY | Meggitt North Hollywood Inc (USA) |
| 422505-1 PRIMARY | Pacific Scientific Company Dba Pacific Scientific Co Div Services at Support Operations (USA) |
| 123SCEC5203-3 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 123SCEC5203-3 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 123SCEC5203-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1680-01-561-2501 is a Primary Press Regul, manufactured by Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-561-2501 has 4 manufacturer part numbers on file: 422505-1 (Jamaica Bearings Co., Inc. Dba Jamaica Bearings Co., Inc.), 422505-1 (Meggitt North Hollywood Inc), 422505-1 (Pacific Scientific Company Dba Pacific Scientific Co Div Services at Support Operations), 123SCEC5203-3 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems).
1 possible match (shared part number, not a government interchangeability claim): 2910-01-665-4282. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1680-01-561-2501 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.