The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-202-7438, 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 Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-202-7438 |
| Primary Part Number | 2012A-23 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Length | 1.470 INCHES NOMINAL IN |
| Thread Provision | THREADED LOCATION NOT OTHERWISE SPECIFIED |
| Design Type | PLATE |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED |
| Thread Length | 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Outside Diameter | 3.250 INCHES MINIMUM AND 3.255 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Thread Size Designator | 2.3/8-16 LOCATION NOT OTHERWISE SPECIFIED |
| Surface Treatment | ANODIZE |
| Thread Class | 3B LOCATION NOT OTHERWISE SPECIFIED |
| Material | ALUMINUM ALLOY |
| Orifice Diameter | 0.626 INCHES MINIMUM AND 0.627 INCHES MAXIMUM 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 |
|---|---|
| 2012A-23 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 2012A23 | 7/2 Vendor item drawing reference Goodrich Corporation |
| 2012A23 | 7/9 Vendor item drawing reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 4730-01-202-7438 is a Restrictor,fluid Flow, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-202-7438 has 1 manufacturer part number on file: 2012A-23 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 2012A-23: Length: 1.470 INCHES NOMINAL IN; Thread Provision: THREADED LOCATION NOT OTHERWISE SPECIFIED; Design Type: PLATE; Thread Series: UNIFIED NATIONAL COARSE (UNC) LOCATION NOT OTHERWISE SPECIFIED. 12 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.