The Housing,propeller Shaft, cataloged under National Stock Number 2520-01-178-3023, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 2520-01-178-3023 |
| Primary Part Number | 20809 |
| Item Name | Housing,propeller Shaft |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| General Characteristics Item Description | BEARING ID 1.7717/1.7712; FURNISHED W/SPICER CENTER BEARINGS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20809 | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| 283068C92 | 5/9 Secondary reference U.S. Government activity |
| 283067C93 | 5/9 Secondary reference U.S. Government activity |
| 2591049C91 | 3/2 Design control — primary reference U.S. Government activity |
| 283067C92 | 5/9 Secondary reference U.S. Government activity |
NSN 2520-01-178-3023 is a Housing,propeller Shaft, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-01-178-3023 has 1 manufacturer part number on file: 20809 (Trw Inc Trw Intl Trade Government Sales Dept).
3 possible matches (shared part number, not a government interchangeability claim): 3825-01-299-3842, 4720-01-382-8677, 5360-01-434-0309. Verify interchangeability with system specifications before substitution.
Key specifications for 20809: General Characteristics Item Description: BEARING ID 1.7717/1.7712; FURNISHED W/SPICER CENTER BEARINGS; End Item Identification: INTERNATIONAL HARVESTER TRUCKS MODEL S SERIES 1624 THRU 1854. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.