The Pipe,exhaust, cataloged under National Stock Number 2990-01-496-3359, 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 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-496-3359 |
| Primary Part Number | 12421916-006 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| End Item Model Number | P/N 87T0057 NSN 2320-01-447-6345 |
| End Item Source | 19207 |
| Design Form | PREBENT |
| Nominal Overall Length | 62.790 INCHES IN |
| Material Document and Classification | ASTM A554, GRADE MT-304L ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A269, GRADE TP-304 ASSN STD SINGLE MATERIAL RESPONSE |
| End Item Name | CHASSIS, TRUCK |
| Nominal Outside Diameter | 5.000 INCHES IN |
| Material | STEEL COMP 304L |
| Usage Location | EXHAUST PIPE |
| 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 |
|---|---|
| 12421916-006 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12421916-006 | Amz Alabama Inc. (USA) |
| 12421916-006 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
NSN 2990-01-496-3359 is a Pipe,exhaust, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-496-3359 has 3 manufacturer part numbers on file: 12421916-006 (U S Army Tank Automotive Command Amsta-Im-Mm), 12421916-006 (Amz Alabama Inc.), 12421916-006 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).
Key specifications for 12421916-006: End Item Model Number: P/N 87T0057 NSN 2320-01-447-6345; End Item Source: 19207; Design Form: PREBENT; Nominal Overall Length: 62.790 INCHES IN. 9 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.