The Adapter,straight,flange to Pipe, cataloged under National Stock Number 4730-00-939-9912, 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 Atap Inc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-939-9912 |
| Primary Part Number | 2191-2113 |
| Item Name | Adapter,straight,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Atap Inc |
| Status | ACTIVE |
| Recess Nominal Depth | 0.078 INCHES SECOND END IN |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flange Face Design | RECESSED WITH GASKET GROOVE SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Nominal Length | 5.000 INCHES SECOND END IN |
| Nominal Overall Length | 1.250 INCHES IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Bolt Hole Nominal Diameter | 0.375 INCHES SECOND END IN |
| Nominal Thread Size | 3.000 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 3.375 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 4.688 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 4.000 INCHES SECOND END IN |
| Material | COPPER OVERALL |
| Thread Series Designator | NPT FIRST END |
| Nominal Thickness | 0.625 INCHES SECOND END IN |
| Recess Nominal Diameter | 3.375 INCHES SECOND END 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 |
|---|---|
| 2191-2113 PRIMARY | Atap Inc (USA) |
| Reference | Meaning |
|---|---|
| 2191-2113 | 5/9 Secondary reference U.S. Government activity |
| 02191-2113 | C/1 Advisory reference — outside the item-of-supply concept Asrc Federal Facilities Logistics, Llc |
| 02191-2113 | 5/9 Secondary reference U.S. Government activity |
| 05-2191-2113 | 5/9 Secondary reference Wheeler Fleet Solutions, Co. |
NSN 4730-00-939-9912 is a Adapter,straight,flange to Pipe, manufactured by Atap Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-939-9912 has 1 manufacturer part number on file: 2191-2113 (Atap Inc).
Key specifications for 2191-2113: Recess Nominal Depth: 0.078 INCHES SECOND END IN; Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flange Face Design: RECESSED WITH GASKET GROOVE SECOND END; Connection Style: PLAIN (PIPE) 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.