The Restrictor Unit,fluid Flow, cataloged under National Stock Number 4730-01-231-1533, 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 Honeywell International Inc Div Aerospace-South Bend (bendix Dr). Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-231-1533 |
| Primary Part Number | 2666527-177 |
| Item Name | Restrictor Unit,fluid Flow |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| Status | ACTIVE |
| Strainer Type and Quantity | 1 SCREEN |
| Design Type | STRAIGHT |
| Thread Series | UNF FIRST CONNECTION |
| End Connection Type | THREADED FEMALE FIRST CONNECTION |
| Diameter | 0.1967 INCHES MINIMUM AND 0.1974 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND FIRST CONNECTION |
| Thread Size Designator | 0.164-36 FIRST CONNECTION |
| Material | STEEL CORROSION RESISTING SCREENING |
| Material | STEEL CORROSION RESISTING BODY |
| End Connection Similarity | NOT IDENTICAL |
| 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 |
|---|---|
| 2666527-177 | Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA) |
| Reference | Meaning |
|---|---|
| JETA1975320D | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-231-1533 is a Restrictor Unit,fluid Flow, manufactured by Honeywell International Inc Div Aerospace-South Bend (bendix Dr), classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-231-1533 has 1 manufacturer part number on file: 2666527-177 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)).
Key specifications for 2666527-177: Strainer Type and Quantity: 1 SCREEN; Design Type: STRAIGHT; Thread Series: UNF FIRST CONNECTION; End Connection Type: THREADED FEMALE FIRST CONNECTION. 10 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.