The Rotor,alternator, cataloged under National Stock Number 2920-01-026-3104, is classified within Federal Supply Class 2920 (Engine Electrical System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Kalmar AC Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2920-01-026-3104 |
| Primary Part Number | 71172889 |
| Item Name | Rotor,alternator |
| FSC / FSG | 2920 / 29 — Engine Electrical System Components, Nonaircraft |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL MATERIAL,6.250 IN. O/A LENGTH BY 4.000 IN. DIA W/BRASS BUSHING ONE END 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 |
|---|---|
| 1172889-6 | Kalmar AC Inc (USA) |
| 71172889 PRIMARY | Kalmar AC Inc (USA) |
| Reference | Meaning |
|---|---|
| 1876570 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| 1971990 | 5/9 Secondary reference General Motors Corp AC-Delco Div Government Order Dept |
| 1971990 | 5/9 Secondary reference General Motors Corp Delco Remy Div |
| 1971990 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
NSN 2920-01-026-3104 is a Rotor,alternator, manufactured by Kalmar AC Inc, classified under FSC 2920, Engine Electrical System Components, Nonaircraft. Status: active.
NSN 2920-01-026-3104 has 2 manufacturer part numbers on file: 1172889-6 (Kalmar AC Inc), 71172889 (Kalmar AC Inc).
1 possible match (shared part number, not a government interchangeability claim): 5342-01-365-7306. Verify interchangeability with system specifications before substitution.
Key specifications for 71172889: General Characteristics Item Description: STEEL MATERIAL,6.250 IN. O/A LENGTH BY 4.000 IN. DIA W/BRASS BUSHING ONE END IN. 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.