The Reducer,boss, cataloged under National Stock Number 4730-00-866-3512, 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 Pentair Filtration Solutions, Llc. Government technical data includes 13 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-866-3512 |
| Primary Part Number | 741-09 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Pentair Filtration Solutions, Llc |
| Status | ACTIVE |
| Connection Style | GASKET SEAL (BOSS) SECOND END |
| Nominal Overall Length | 1.615 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Reduced Passage Nominal Inside Diameter | 0.125 INCHES FIRST END IN |
| Nominal Thread Size | 0.625 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Thread Class | 3A FIRST END A |
| Thread Class | 3A SECOND END A |
| Material | PLASTIC OVERALL |
| Thread Series Designator | UNF FIRST END |
| Thread Series Designator | UNF SECOND END |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 741-09 PRIMARY | Pentair Filtration Solutions, Llc (USA) |
NSN 4730-00-866-3512 is a Reducer,boss, manufactured by Pentair Filtration Solutions, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-866-3512 has 1 manufacturer part number on file: 741-09 (Pentair Filtration Solutions, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5962-01-122-4952, 6680-01-198-0038. Verify interchangeability with system specifications before substitution.
Key specifications for 741-09: Connection Style: GASKET SEAL (BOSS) SECOND END; Nominal Overall Length: 1.615 INCHES IN; Connection Type: THREADED EXTERNAL BOSS FIRST END; Connection Type: THREADED EXTERNAL BOSS SECOND END. 13 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.