The Combustion Chamber,heater Coolan, cataloged under National Stock Number 2990-01-397-2316, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 2990-01-397-2316 |
| Primary Part Number | 26553A |
| Item Name | Combustion Chamber,heater Coolan |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, 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 |
|---|---|
| 26553A | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 26553A PRIMARY | Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc (USA) |
| 26553A | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 303.046 | 5/9 Secondary reference Webasto Thermosystems Inc |
| 26553A | 5/9 Secondary reference Webasto Thermosystems Inc |
NSN 2990-01-397-2316 is a Combustion Chamber,heater Coolan, manufactured by Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-397-2316 has 3 manufacturer part numbers on file: 26553A (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 26553A (Webasto Thermo & Comfort North America, Inc. Div Webasto Product North America, Inc), 26553A (Amz Alabama Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-531-7303. Verify interchangeability with system specifications before substitution.
Key specifications for 26553A: Special Features: CYLINDRICAL SHAPE;BRACKET MTD.; End Item Identification: 2320-01-353-9098;CHASSIS,TRUCK.. 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.