The Valve,stop-Check, cataloged under National Stock Number 4810-01-337-0427, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4810-01-337-0427 |
| Primary Part Number | 70307-83805-103 |
| Item Name | Valve,stop-Check |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Supplementary Features | VALVE OPERATION METHOD: ELECTRIC MOTOR |
| Connection Type | FLANGE ALL ENDS |
| Operating Pressure | 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | ALUMINUM ALLOY OVERALL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY SOURCE CONTROL NO. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 83805-105 | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
| 83805-103 | Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA) |
| 83805-105 *REPRESENTATIVE & DIST | Integrated Procurement Technologies (USA) |
| 70307-83805-103 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 70307-83805 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| AV24B1426 | Itt Aerospace Controls Llc Dba Itt Aerospace Controls Unit S (USA) |
| Reference | Meaning |
|---|---|
| 70307-83805-103 | 5/3 Secondary reference U.S. Government activity |
| 70307-83805-103 | C/1 Advisory reference — outside the item-of-supply concept Pti Technologies Inc. |
| 70307-83805-103 | 5/9 Secondary reference Vacco Industries |
NSN 4810-01-337-0427 is a Valve,stop-Check, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-337-0427 has 6 manufacturer part numbers on file: 83805-105 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 83805-103 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 83805-105 *REPRESENTATIVE & DIST (Integrated Procurement Technologies), 70307-83805-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 70307-83805 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5331-01-705-3896. Verify interchangeability with system specifications before substitution.
Key specifications for 70307-83805-103: Supplementary Features: VALVE OPERATION METHOD: ELECTRIC MOTOR; Connection Type: FLANGE ALL ENDS; Operating Pressure: 120.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: NOMINAL LENGTH 8.850 IN.,NOMINAL WIDTH 3.000,MANUAL OVERRIDE IS PROVIDED TO OPEN VALVE AND RETURN TO NORMAL POSITION,ELEC. POWER REQUIREMENTS ARE 18 TO 30 VDC,1 AMP MAX. CONTINUOUS DUTY,20,000 CYCLES VDC. 6 specifications are 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.
NSN 4810-01-337-0427 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.