The Seal,rear Crankshaft, cataloged under National Stock Number 2990-01-564-9441, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Textron Ground Support Equipment Inc. Div Textron Gse. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2990-01-564-9441 |
| Primary Part Number | 20-10-0026 |
| Item Name | Seal,rear Crankshaft |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Textron Ground Support Equipment Inc. Div Textron Gse |
| Status | ACTIVE |
| Reference Data and Literature | NAVAIR 19-40-523 (FIG. 23, IND. 2) |
| 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 |
|---|---|
| 20-10-0026 PRIMARY | Textron Ground Support Equipment Inc. Div Textron Gse (USA) |
| Reference | Meaning |
|---|---|
| 20-10-0026 | 5/9 Secondary reference Tug Technologies Corporation |
NSN 2990-01-564-9441 is a Seal,rear Crankshaft, manufactured by Textron Ground Support Equipment Inc. Div Textron Gse, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-01-564-9441 has 1 manufacturer part number on file: 20-10-0026 (Textron Ground Support Equipment Inc. Div Textron Gse).
Key specifications for 20-10-0026: Reference Data and Literature: NAVAIR 19-40-523 (FIG. 23, IND. 2); End Item Identification: 1740-01-502-4630, MID RANGE TOW TRACTOR, (MRTT). 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.