The Valve,restrictor Check, cataloged under National Stock Number 4820-01-262-8280, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cae Usa Inc.. Government technical data includes 21 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-262-8280 |
| Primary Part Number | 843283 |
| Item Name | Valve,restrictor Check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cae Usa Inc. |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Flange Shape | RECTANGULAR WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Connection Style | PLAIN, OPTIONAL END (PIPE) ALL ENDS |
| Nominal Length | 3.000 INCHES ALL ENDS IN |
| Mounting Position | VERTICAL |
| Connection Type | UNTHREADED CARTRIDGE ALL ENDS |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Material Document and Classification | QQ-A-22516,TEMPER T6 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.109 INCHES SECOND END IN |
| Bolt Hole Nominal Diameter | 0.281 INCHES FIRST END IN |
| Valve Size | 0.500 INCHES IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 0.500 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 1.000 INCHES ALL ENDS IN |
| Face to Face Distance | 3.000 INCHES IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.375 INCHES ALL ENDS IN |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| Material | ALUMINUM OVERALL |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.375 INCHES ALL ENDS 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 |
|---|---|
| 843283 PRIMARY | Cae Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 843283 | 5/9 Secondary reference Raytheon Technical Services Company |
NSN 4820-01-262-8280 is a Valve,restrictor Check, manufactured by Cae Usa Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-262-8280 has 1 manufacturer part number on file: 843283 (Cae Usa Inc.).
Key specifications for 843283: Flow Control Device: POPPET; Flange Shape: RECTANGULAR WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS. 21 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.
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.