The Strainer,duplex, cataloged under National Stock Number 4730-00-336-9300, 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 Ametek Inc Schutte and Koerting Div. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Strainer,duplex |
| FSC / FSG | 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings (FSG 47) |
| Manufacturers | Ametek Inc Schutte and Koerting Div (CAGE 53553); Huntington Ingalls Inc Div Newport News Shipbuilding (CAGE 43689) |
| Parameter | Value |
|---|---|
| NSN | 4730-00-336-9300 |
| Primary Part Number | 42A1F |
| Item Name | Strainer,duplex |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ametek Inc Schutte and Koerting Div |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 42A1F PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 43A3F2 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 620-195 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 40A2FST PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 46A1F1 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| A2F1 | Ametek Inc Schutte and Koerting Div (USA) |
| 40A2F5 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 46A1F PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 40A2F1 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 42A1F3 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 43A3F1 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| 40A2F6 PRIMARY | Ametek Inc Schutte and Koerting Div (USA) |
| Reference | Meaning |
|---|---|
| CA139S4501-863294ALT1 | 3/2 Design control — primary reference U.S. Government activity |
| CL55S45-27ALT6 | 3/2 Design control — primary reference U.S. Government activity |
| CA122S4501-310343ALT1 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S4501-033 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S4501-59ALT2 | 3/2 Design control — primary reference U.S. Government activity |
| BB57S45-045 | 3/2 Design control — primary reference U.S. Government activity |
| CA122S4501-310343ALT2 | 3/2 Design control — primary reference U.S. Government activity |
| CV9S4501-59 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-336-9300 is a Strainer,duplex, manufactured by Ametek Inc Schutte and Koerting Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-336-9300 has 12 manufacturer part numbers on file: 42A1F (Ametek Inc Schutte and Koerting Div), 43A3F2 (Ametek Inc Schutte and Koerting Div), 620-195 (Huntington Ingalls Inc Div Newport News Shipbuilding), 40A2FST (Ametek Inc Schutte and Koerting Div), 46A1F1 (Ametek Inc Schutte and Koerting Div) and 7 more.
1 possible match (shared part number, not a government interchangeability claim): 2590-00-359-2908. Verify interchangeability with system specifications before substitution.
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.