The Block,roller Mounti, cataloged under National Stock Number 4210-01-245-0053, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Block,roller Mounti |
| FSC / FSG | 4210 — Firefighting Equipment (FSG 42) |
| Parameter | Value |
|---|---|
| NSN | 4210-01-245-0053 |
| Item Name | Block,roller Mounti |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Reference | Meaning |
|---|---|
| 310410 | 5/9 Secondary reference Amertek Inc |
| EH650 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4210-01-245-0053 is a Block,roller Mounti, classified under FSC 4210, Firefighting Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4140-01-283-7888. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). 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.