The Flange,pipe, cataloged under National Stock Number 4730-01-469-9867, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-469-9867 |
| Primary Part Number | 99-D-221 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Socket Diameter | 1.360 INCHES NOMINAL IN |
| Flange Diameter | 4.250 INCHES NOMINAL IN |
| Face Seating Surface Condition | SERRATED |
| Nominal Pipe Size for Which Designed | 1.000 INCHES IN |
| Socket Depth | 0.500 INCHES NOMINAL IN |
| Flange Section Style | RAISED FACE, SOCKET NECK |
| Criticality Code Justification | ZZZX |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.620 INCHES NOMINAL IN |
| Neck Height | 0.130 INCHES NOMINAL IN |
| Departure From Cited Designator | BORE TO EQUAL 0.957 INCH +/- 0.015 INCH IN |
| Specification/standard Data | 80204-ASME B16.5 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 1IN NPS SIZE AND SOCKET WELD TYPE AND 150 CLASS IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.120 INCHES NOMINAL IN |
| Raised Face Diameter | 1.940 INCHES NOMINAL IN |
| Raised Face Height | 0.060 INCHES NOMINAL IN |
| Material | STEEL |
| Thickness | 0.500 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 99-D-221 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| ASME-B16.5 1NPS SK WELD | 3/1 Design control — primary reference U.S. Government activity |
| ASTM-A105 GR11,150# RAISED FACE | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-469-9867 is a Flange,pipe, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-469-9867 has 1 manufacturer part number on file: 99-D-221 (Derbyshire Machine & Tool Co).
Key specifications for 99-D-221: Socket Diameter: 1.360 INCHES NOMINAL IN; Flange Diameter: 4.250 INCHES NOMINAL IN; Face Seating Surface Condition: SERRATED; Nominal Pipe Size for Which Designed: 1.000 INCHES IN. 19 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.