The Strainer Element,sediment, cataloged under National Stock Number 4730-01-439-2976, 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 Little John Trailer Sales. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-439-2976 |
| Primary Part Number | S21155 |
| Item Name | Strainer Element,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Little John Trailer Sales |
| Status | ACTIVE |
| Filtering Media Design | MESH |
| Length | 8.500 INCHES NOMINAL IN |
| Mesh Size | 20.0 |
| Style Designator | CYLINDRICAL |
| Element Outside Diameter | 2.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Wire Diameter | 0.014 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 |
|---|---|
| S21155 | Little John Trailer Sales (USA) |
| Reference | Meaning |
|---|---|
| S21155 | 3/9 Design control — primary reference Allegheny Valve Co |
NSN 4730-01-439-2976 is a Strainer Element,sediment, manufactured by Little John Trailer Sales, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-439-2976 has 1 manufacturer part number on file: S21155 (Little John Trailer Sales).
Key specifications for S21155: Filtering Media Design: MESH; Length: 8.500 INCHES NOMINAL IN; Mesh Size: 20.0; Style Designator: CYLINDRICAL. 7 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.