The Insulation Cover,muffler, cataloged under National Stock Number 2990-01-113-7891, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Amz Alabama 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-113-7891 |
| Primary Part Number | 2600540 |
| Item Name | Insulation Cover,muffler |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL,CORROSION RESISTANT PER MIL-S-6721 OR CLASS 321 OR 347;FINISH 2D OR 2B PER QQ-S-766;0.005 IN.THK FOR OUTER FOIL,0.003 IN.THK FOR INNER FOIL;35.250 IN.LG,24.000 IN.W,0.500 IN.THK 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 |
|---|---|
| 2600540 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2600540 | 7/2 Vendor item drawing reference U.S. Government activity |
| 2600540 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2990-01-113-7891 is a Insulation Cover,muffler, manufactured by Amz Alabama Inc., classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-113-7891 has 1 manufacturer part number on file: 2600540 (Amz Alabama Inc.).
Key specifications for 2600540: General Characteristics Item Description: MATERIAL STEEL,CORROSION RESISTANT PER MIL-S-6721 OR CLASS 321 OR 347;FINISH 2D OR 2B PER QQ-S-766;0.005 IN.THK FOR OUTER FOIL,0.003 IN.THK FOR INNER FOIL;35.250 IN.LG,24.000 IN.W,0.500 IN.THK IN; End Item Identification: LANDING VEHICLE,TRACKED,FMC CORP,MODEL LVTP7A1. 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.