The Heating Blanket,electrical, cataloged under National Stock Number 4540-01-562-6028, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Ritchie Engineering Co Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-01-562-6028 |
| Primary Part Number | 68849 |
| Item Name | Heating Blanket,electrical |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Ritchie Engineering Co Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 68849 PRIMARY | Ritchie Engineering Co Inc (USA) |
| Reference | Meaning |
|---|---|
| HS6161-0001 | 7/2 Vendor item drawing reference The Boeing Company |
NSN 4540-01-562-6028 is a Heating Blanket,electrical, manufactured by Ritchie Engineering Co Inc, classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-01-562-6028 has 1 manufacturer part number on file: 68849 (Ritchie Engineering Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6615-01-616-1154. Verify interchangeability with system specifications before substitution.
Key specifications for 68849: Special Features: HEATING BLANKET, ELECTRICAL: FIT 30 AND 50 POUND CYLINDERS LBS; End Item Identification: 1520-01-355-8250; HELICOPTER, ATTACK. 0 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.