The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-449-7696, 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 Trico Manufacturing Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-449-7696 |
| Primary Part Number | 4M307-3-44 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Trico Manufacturing Inc. |
| Status | ACTIVE |
| Length | 0.025 INCHES NOMINAL IN |
| Thread Provision | UNTHREADED LOCATION NOT OTHERWISE SPECIFIED |
| Outside Diameter | 1.484 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Orifice Diameter | 0.688 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 4M307-3-44 PRIMARY | Trico Manufacturing Inc. (USA) |
| 4M307-3-44 | Anillo Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 4M307-3-44 | 5/9 Secondary reference The Boeing Company Div Defense |
| 4M307-3-44 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
NSN 4730-01-449-7696 is a Restrictor,fluid Flow, manufactured by Trico Manufacturing Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-449-7696 has 2 manufacturer part numbers on file: 4M307-3-44 (Trico Manufacturing Inc.), 4M307-3-44 (Anillo Industries Llc).
Key specifications for 4M307-3-44: Length: 0.025 INCHES NOMINAL IN; Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED; Outside Diameter: 1.484 INCHES NOMINAL IN; Special Features: MATERIAL: ALUMINUM ALLOY,TYPE 6061-T6,PER QQ-A-250/11,CONDITION T6;SURFACE FINISH: CHEMICAL SURFACE TREAT PERMIL-C-5541,CLASS 3;ENG. INFORMATION;THIS RESTRICTOR IS INTENDED FOR USE IN ST7M349 AND 9M919 SEALS TO RESTRICT FLOW OF COOLING AIR. 5 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.
NSN 4730-01-449-7696 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.