The Strainer Element,sediment, cataloged under National Stock Number 4730-01-306-6421, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-306-6421 |
| Item Name | Strainer Element,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Filtering Media Design | MESH |
| Style Designator | ROUND W/ MTG HOLES (BASICALLY FLAT) |
| Material Document and Classification | MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE |
| Element Outside Diameter | 5.156 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 0.500 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 |
| Reference | Meaning |
|---|---|
| 810-1385789 | D/9 Drawing number reference only U.S. Government activity |
| 810-1385789 TYPE D PIECE 16 | 3/2 Design control — primary reference U.S. Government activity |
| 810-1385789 TYP | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4730-01-306-6421 is a Strainer Element,sediment, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-530-1969, 2090-01-572-6651. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-306-6421: Filtering Media Design: MESH; Style Designator: ROUND W/ MTG HOLES (BASICALLY FLAT); Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE; Element Outside Diameter: 5.156 INCHES NOMINAL IN. 6 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.