The Flange,pipe, cataloged under National Stock Number 4730-01-539-9327, 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 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-539-9327 |
| Primary Part Number | 12441878 |
| 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 | 5.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | FINAL PROTECTIVE FINISH IAW 12420325 METHOD 1 MFR REF SINGLE TREATMENT RESPONSE |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.406 INCHES NOMINAL IN |
| Neck Height | 2.000 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A576, GRADE 1018, BAR ROUND, (UNS G10180), HOT ROLLED ASSN STD SINGLE MATERIAL RESPONSE |
| Reducer Flange Hole Type | CONCENTRIC |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 3.500 INCHES NOMINAL IN |
| Material | STEEL |
| Neck Diameter | 0.644 INCHES NOMINAL IN |
| Thickness | 0.380 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 |
|---|---|
| 12441878 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 4730-01-539-9327 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 4730-01-539-9327 has 1 manufacturer part number on file: 12441878 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12441878: Flange Diameter: 5.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: FINAL PROTECTIVE FINISH IAW 12420325 METHOD 1 MFR REF SINGLE TREATMENT RESPONSE; Flange Section Style: PLAIN FACE, LONG NECK; Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 13 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.