The Flange,pipe, cataloged under National Stock Number 4730-01-101-7412, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-101-7412 |
| Primary Part Number | 11668855-1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flange Diameter | 6.750 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 4.000 INCHES IN |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.438 INCHES NOMINAL IN |
| Neck Height | 1.125 INCHES NOMINAL IN |
| Nominal Thread Size | 0.112 INCHES IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 5.875 INCHES NOMINAL IN |
| Screw Thread Series Designator | NPT |
| Material | ALUMINUM |
| Neck Diameter | 4.875 INCHES NOMINAL IN |
| Thickness | 0.375 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 |
|---|---|
| 11668855-1 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 603C--0400 MC | Morrison Brothers Co Dba Morrison Brothers Co (USA) |
| Reference | Meaning |
|---|---|
| 502-F | 5/9 Secondary reference U.S. Government activity |
| 603C | 5/9 Secondary reference Morrison Brothers Co Dba Morrison Brothers Co |
| 502-F | 3/9 Design control — primary reference Dover Resources Inc Dba Opw Engineered Systems |
NSN 4730-01-101-7412 is a Flange,pipe, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-101-7412 has 2 manufacturer part numbers on file: 11668855-1 (U S Army Tank Automotive Command Amsta-Im-Mm), 603C--0400 MC (Morrison Brothers Co Dba Morrison Brothers Co).
Key specifications for 11668855-1: Flange Diameter: 6.750 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 4.000 INCHES IN; Flange Section Style: PLAIN FACE, LONG NECK. 14 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.