The Adapter,exhaust, cataloged under National Stock Number 2990-01-166-1123, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Stewart & Stevenson Power Products Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-166-1123 |
| Primary Part Number | 21064 |
| Item Name | Adapter,exhaust |
| FSC / FSG | 2990 / 29 — No Item Name Available |
| Manufacturer | Stewart & Stevenson Power Products Llc |
| Status | ACTIVE |
| Functional Description | USED BETWEEN CONNECTOR,EXHAUST PN 8-37592-5 AND MUFFLER PN M0M09-0140 |
| FSC Application Data | MISCELLANEOUS ENGINE ACCESSORIES,NONAIRCRAFT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 2990-01-166-1123 is a Adapter,exhaust, manufactured by Stewart & Stevenson Power Products Llc, classified under FSC 2990 (No Item Name Available). Status: active.
NSN 2990-01-166-1123 has 2 cross-referenced part numbers: 21064 (Stewart & Stevenson Power Products Llc), 8-37592-6 (Stewart & Stevenson Power Products Llc).
There are 7 known substitutes for 2990-01-166-1123: 4730-00-274-5828, 2990-00-330-4712, 5930-00-548-3368 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21064: End Item Identification: PART OF MUFFLER ASSY PN M0M09-0140,U/O HYD TEST STAND NSN 4920010210434,E/I F100 ENGINE; Functional Description: USED BETWEEN CONNECTOR,EXHAUST PN 8-37592-5 AND MUFFLER PN M0M09-0140; FSC Application Data: MISCELLANEOUS ENGINE ACCESSORIES,NONAIRCRAFT. 3 total characteristics are documented in the Federal Logistics Information System.