The Valve,stop-Check, cataloged under National Stock Number 4810-01-540-6660, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-540-6660 |
| Primary Part Number | 2760012-103 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2760012-103 | Parker-Hannifin Corporation Dba Pneutronics (USA) |
| 2760012-103 PRIMARY | The Boeing Company Div Defense (USA) |
| 2760012-103 | The Boeing Company Div Services (USA) |
| Reference | Meaning |
|---|---|
| 2760012-103 | 5/2 Secondary reference U.S. Government activity |
NSN 4810-01-540-6660 is a Valve,stop-Check, manufactured by The Boeing Company Div Defense, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-540-6660 has 3 manufacturer part numbers on file: 2760012-103 (Parker-Hannifin Corporation Dba Pneutronics), 2760012-103 (The Boeing Company Div Defense), 2760012-103 (The Boeing Company Div Services).
Key specifications for 2760012-103: Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; Part Name Assigned by Controlling Agency: VALVE, STOP-CHECK, AI; End Item Identification: FIGHTER SUPPORT AIRCRAFT (F/A-18). 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.