The Shield,heat, cataloged under National Stock Number 2990-00-477-6159, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Am General Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2990-00-477-6159 |
| Primary Part Number | MA207 21 120 |
| Item Name | Shield,heat |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Am General Llc |
| Status | ACTIVE |
| General Characteristics Item Description | 5.030 IN. DIA;0.468 IN. THK;2.750 IN. DIA BORE 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 |
|---|---|
| MA207 21 120 PRIMARY | Am General Llc (USA) |
| 171570 PRIMARY | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10387722 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 2990-00-477-6159 is a Shield,heat, manufactured by Am General Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-477-6159 has 2 manufacturer part numbers on file: MA207 21 120 (Am General Llc), 171570 (Cummins Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-363-2158. Verify interchangeability with system specifications before substitution.
Key specifications for MA207 21 120: General Characteristics Item Description: 5.030 IN. DIA;0.468 IN. THK;2.750 IN. DIA BORE IN; End Item Identification: CLARK MODEL 290M;TRACTOR,WHEELED,IND.,DIESEL DRIVEN;MED DBP,NSN 2420000889384,W/ROPS NSN 2420010590090 W. 1 specification is 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.