The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-148-8190, 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 Guill Tool & Engineering Co Inc Div Guill Defense. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-148-8190 |
| Primary Part Number | 2621-561-02 ASSY 199-8 |
| Item Name | Restrictor,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Guill Tool & Engineering Co Inc Div Guill Defense |
| Status | ACTIVE |
| 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 |
|---|---|
| 2621-561-02 ASSY 199-8 PRIMARY | Guill Tool & Engineering Co Inc Div Guill Defense (USA) |
| 2621-561-02 ASSY 199-8 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 2621-561-02 ASSY 199-8 | 5/2 Secondary reference U.S. Government activity |
| 502-4685887 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 19-97-1928A | 5/2 Secondary reference U.S. Government activity |
| 502-4685887 F4 | 5/2 Secondary reference U.S. Government activity |
| 19-97-1928 | 5/9 Secondary reference U.S. Government activity |
| 87645-5421 F4 | 5/2 Secondary reference U.S. Government activity |
| 83-F01665-8 | 5/9 Secondary reference Drw Mfg Co |
NSN 4730-01-148-8190 is a Restrictor,fluid Flow, manufactured by Guill Tool & Engineering Co Inc Div Guill Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-148-8190 has 2 manufacturer part numbers on file: 2621-561-02 ASSY 199-8 (Guill Tool & Engineering Co Inc Div Guill Defense), 2621-561-02 ASSY 199-8 (Derbyshire Machine & Tool Co).
Key specifications for 2621-561-02 ASSY 199-8: End Item Identification: SHIP, OHIO CLASS SSN, TRIDENT. 0 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.