The Strainer Element,sediment, cataloged under National Stock Number 4730-00-441-9905, 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 Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-441-9905 |
| Primary Part Number | 12-221 |
| Item Name | Strainer Element,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| Status | ACTIVE |
| Filtering Media Design | MESH |
| Length | 3.094 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE |
| First End Flange Thickness | 0.025 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Mesh Size | 8.0 |
| End Connection Type | PLAIN SECOND END |
| End Connection Type | FLANGED FIRST END |
| Style Designator | CYLINDRICAL |
| Element Outside Diameter | 2.125 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Material | COPPER ALLOY |
| Wire Diameter | 0.02300 INCHES NOMINAL IN |
| 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 |
|---|---|
| 12-221 PRIMARY | Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA) |
| Reference | Meaning |
|---|---|
| 12-221 | 5/9 Secondary reference Donallco Inc |
| S1812-11 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-441-9905 is a Strainer Element,sediment, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-441-9905 has 1 manufacturer part number on file: 12-221 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us).
Key specifications for 12-221: Filtering Media Design: MESH; Length: 3.094 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE; First End Flange Thickness: 0.025 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN. 12 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.