The Valve,angle, cataloged under National Stock Number 4820-00-202-6817, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 18 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-202-6817 |
| Primary Part Number | X1228 |
| Item Name | Valve,angle |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Flange Shape | ROUND FIRST END |
| Renewable Seat Ring Type | THREADED |
| Flange Face Design | PLAIN FIRST END |
| Connection Type | FLANGE FIRST END |
| Style Designator | ANGLE FLANGED ENDS |
| Valve Size | 2.500 INCHES IN |
| Bonnet Type | INSIDE SCREW |
| Second Connection Face to Centerline Distance | 6.250 INCHES IN |
| Nominal Outside Diameter | 6.125 INCHES FIRST END IN |
| Bonnet Attachment Method | BOLTED |
| First Connection Face to Centerline Distance | 6.250 INCHES IN |
| Material | COPPER ALLOY BODY |
| Material | NICKEL ALLOY STEM |
| Material | NICKEL ALLOY SEAT |
| Valve Operation Method | MANUAL |
| Nominal Thickness | 0.937 INCHES FIRST END IN |
| Reference Number Differentiating Characteristics | ELR NO. |
| 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 |
|---|---|
| X1228 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 4265-13REVAPCV46 | 5/9 Secondary reference U.S. Government activity |
| 3600-120REVFPC2-4-5-7T09-11-14 | 5/2 Secondary reference U.S. Government activity |
| 576-4801-1505147REVAPCV46 | 5/2 Secondary reference U.S. Government activity |
| 4824-3132363REVFRC2-4-5-7TO9-11- | 3/1 Design control — primary reference U.S. Government activity |
| 4265-13REVAPCV46 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-202-6817 is a Valve,angle, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-202-6817 has 1 manufacturer part number on file: X1228 (Derbyshire Machine & Tool Co).
Key specifications for X1228: Flow Control Device: DISK; Flange Shape: ROUND FIRST END; Renewable Seat Ring Type: THREADED; Flange Face Design: PLAIN FIRST END. 18 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.