The Pulley,flat, cataloged under National Stock Number 3020-00-504-7449, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Emerson Electric Co Browning Mfg Div. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-504-7449 |
| Primary Part Number | N4D2F |
| Item Name | Pulley,flat |
| FSC / FSG | 3020 / 30 — No Item Name Available |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.125 INCHES NOMINAL AA END AND 0.062 INCHES NOMINAL BB END IN |
| Material | STEEL OVERALL |
| Split Hub Feature | NOT INCLUDED |
| Face Width | 2.438 INCHES NOMINAL IN |
| Bearing Type | NEEDLE ROLLER |
| Hub Outside Diameter | 1.875 INCHES NOMINAL BOTH ENDS IN |
| Bearing Quantity | 2 |
| Rim Type | SOLID |
| Bore Feature | INCLUDED |
| Bore Type | STRAIGHT |
| Crown Face | NOT INCLUDED |
| Lightening Hole | NOT INCLUDED |
| Integral Cooling Vane | NOT INCLUDED |
| Web/spoke Relationship to Face Centerline | NOT OFFSET |
| Flange Location | OUTSIDE |
| Keying Facility | NOT INCLUDED |
| Design Form | WEBBED |
| Bearings | INCLUDED |
| Counterbore Feature | NOT INCLUDED |
| Style Designator | WEBBED OR SPOKED |
| Outside Diameter | 4.000 INCHES NOMINAL IN |
| Bore Length | 2.500 INCHES NOMINAL IN |
| Flange Width | 0.188 INCHES NOMINAL IN |
| Bore Diameter | 1.000 INCHES NOMINAL IN |
| Flange Quantity | 2 |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3020-00-504-7449 is a Pulley,flat, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020 (No Item Name Available). Status: active.
NSN 3020-00-504-7449 has 2 cross-referenced part numbers: 55265 (Keco Industries, Inc.), N4D2F (Emerson Electric Co Browning Mfg Div).
There are 3 known substitutes for 3020-00-504-7449: 2530-00-408-9076, 3120-00-707-7004, 8145-01-512-1004. Verify interchangeability with system specifications before substitution.
Key specifications for N4D2F: Outside Diameter: 4.750 INCHES NOMINAL IN; Distance From Outside Flange/rim to Hub End and Location: 0.125 INCHES NOMINAL AA END AND 0.062 INCHES NOMINAL BB END IN; Material: STEEL OVERALL; Split Hub Feature: NOT INCLUDED. 27 total characteristics are documented in the Federal Logistics Information System.