The Hanger,engine Exhaust System, cataloged under National Stock Number 2990-01-643-9620, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-643-9620 |
| Primary Part Number | 12423429-001 |
| Item Name | Hanger,engine Exhaust System |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Test Data Document | 19207-12423429 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Unpackaged Unit Weight | 0.94 KILOGRAMS KG |
| 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 |
|---|---|
| 12423429-001 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12423429 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 2990-01-643-9620 is a Hanger,engine Exhaust System, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-643-9620 has 1 manufacturer part number on file: 12423429-001 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12423429-001: Overall Height: 88.9 MILLIMETERS NOMINAL MM; Overall Length: 236.35 MILLIMETERS NOMINAL MM; Overall Width: 76.2 MILLIMETERS NOMINAL MM; Special Features: USED ON FMTV WITH LONG WHEEL BASE.. 2 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.