The Exhaust System,engine, cataloged under National Stock Number 2990-01-249-8720, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Hydraulics International, Inc. Dba Hydraulics International Inc. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-249-8720 |
| Primary Part Number | 83001-413 |
| Item Name | Exhaust System,engine |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Hydraulics International, Inc. Dba Hydraulics International Inc |
| Status | ACTIVE |
| General Characteristics Item Description | MOUNTING FLANGE 4.000 IN. SQ.; FOUR MOUNTING HOLES 3.200 IN. APART,0.400 IN. DIA.,0.500 IN. THK.; ELBOW 2.700 IN. TO CURVE,7.250 IN. TO END,3.000 IN. DIA; CURVE 22 DEG. 48 MIN. 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 |
|---|---|
| 83001-413 PRIMARY | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
NSN 2990-01-249-8720 is a Exhaust System,engine, manufactured by Hydraulics International, Inc. Dba Hydraulics International Inc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-249-8720 has 1 manufacturer part number on file: 83001-413 (Hydraulics International, Inc. Dba Hydraulics International Inc).
Key specifications for 83001-413: General Characteristics Item Description: MOUNTING FLANGE 4.000 IN. SQ.; FOUR MOUNTING HOLES 3.200 IN. APART,0.400 IN. DIA.,0.500 IN. THK.; ELBOW 2.700 IN. TO CURVE,7.250 IN. TO END,3.000 IN. DIA; CURVE 22 DEG. 48 MIN. IN; End Item Identification: HYDRAULIC TEST STAND. 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.