The Roller,idler, cataloged under National Stock Number 3990-01-239-0538, is classified within Federal Supply Class 3990 (Miscellaneous Materials Handling Equipment) of the Materials Handling Equipment group. The manufacturer of record is Lake Shore Systems, Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Roller,idler |
| FSC / FSG | 3990 — Miscellaneous Materials Handling Equipment (FSG 39) |
| Manufacturers | Lake Shore Systems, Inc. (CAGE 34712); Reid Products Inc. Dba Reid Products Inc (CAGE 59563) |
| Parameter | Value |
|---|---|
| NSN | 3990-01-239-0538 |
| Primary Part Number | 1210C3505 |
| Item Name | Roller,idler |
| FSC / FSG | 3990 / 39 — Miscellaneous Materials Handling Equipment |
| Manufacturer | Lake Shore Systems, Inc. |
| 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 |
|---|---|
| 1210C3505 PRIMARY | Lake Shore Systems, Inc. (USA) |
| ST3M747-5D12 | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 1210C3505 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms |
| 1210C3505 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 3990-01-239-0538 is a Roller,idler, manufactured by Lake Shore Systems, Inc., classified under FSC 3990, Miscellaneous Materials Handling Equipment. Status: active.
NSN 3990-01-239-0538 has 2 manufacturer part numbers on file: 1210C3505 (Lake Shore Systems, Inc.), ST3M747-5D12 (Reid Products Inc. Dba Reid Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 5306-01-239-0583. 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.