The Flange,pipe, cataloged under National Stock Number 4730-01-082-7881, 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 17 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-082-7881 |
| Primary Part Number | 845-4687676ASSY45 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Socket Diameter | 0.850 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 0.500 INCHES IN |
| Socket Depth | 0.500 INCHES NOMINAL IN |
| Flange Section Style | RAISED FACE, SOCKET NECK |
| Style Designator | SQUARE, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| Neck Height | 0.836 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763,COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/8 T6 FED SPEC 2ND MATERIAL RESPONSE |
| Features Provided | O RING |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 1.300 INCHES NOMINAL IN |
| Raised Face Diameter | 1.186 INCHES NOMINAL IN |
| Raised Face Height | 0.063 INCHES NOMINAL IN |
| Flange Width | 2.250 INCHES NOMINAL IN |
| Material | STEEL COMP 304 AND ALUMINUM ALLOY |
| Thickness | 0.841 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 | X |
| Part Number | Manufacturer |
|---|---|
| 845-4687676ASSY45 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 845-4687676ASSY45 | 5/2 Secondary reference U.S. Government activity |
| 4687676-0045 | 3/2 Design control — primary reference U.S. Government activity |
| 845-4687676 | D/9 Drawing number reference only U.S. Government activity |
NSN 4730-01-082-7881 is a Flange,pipe, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-082-7881 has 1 manufacturer part number on file: 845-4687676ASSY45 (Derbyshire Machine & Tool Co).
Key specifications for 845-4687676ASSY45: Socket Diameter: 0.850 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 0.500 INCHES IN; Socket Depth: 0.500 INCHES NOMINAL IN. 17 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.