The Pipe,exhaust, cataloged under National Stock Number 2990-01-099-7486, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-099-7486 |
| Item Name | Pipe,exhaust |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Status | ACTIVE |
| Design Form | PREBENT |
| 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 |
| Reference | Meaning |
|---|---|
| 69950 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
| 69950 | C/1 Advisory reference — outside the item-of-supply concept Drs Environmental Systems Inc |
| CS-2990-SV-0706 | D/9 Drawing number reference only Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
NSN 2990-01-099-7486 is a Pipe,exhaust, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-547-9752, 8010-01-558-6336. Verify interchangeability with system specifications before substitution.
Key specifications for 2990-01-099-7486: Design Form: PREBENT; Special Features: MATERIAL,STEEL TUBE,0.620 IN.WALL THICKNESS,1.500 IN TUBE OD,180 DEG.BEND 0N 3.375 IN.RADIUS;ONE END PLAIN; OTHER END WITH PIPE FLANGE; 2.875 IN. FLANGE LG.1.875 IN.FLANGE WIDTH,0.250 IN.FLANGE THICKNESS,2. UNTHD HOLES 0.375 IN. DIA EQUALLY SPACED 2.283 CENTER TO CENTER,FLANGE END RADIUS 0.500 IN.; ONE 0.375 IN. OD TUBE,0.049 IN.WALL,STEEL,7.000 IN.LG AND ONE 0.250 IN.OD TUBE,0.049 IN.WALL,STEEL,7.000 IN. LG AND ONE 0.250 IN.OD TUBE,0.049 IN. WALL,STEEL 5.750 IN.LG BRAZED IN PLAIN END LEG OF PIPE 0.688 IN. CENTER TO CENTER IN; End Item Identification: GRUMMAN AEROSPACE A-10 AIRCRAFT; Usage Location: EXHAUST PIPE. 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.