The Pulley,groove, cataloged under National Stock Number 3020-01-248-6899, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Bosch Security Systems, Llc. Government technical data includes 19 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-248-6899 |
| Primary Part Number | 43355-P1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bosch Security Systems, Llc |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.171 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.020 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 0.480 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.047 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.125 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| Face Width | 0.171 INCHES NOMINAL IN |
| Groove Width | 0.040 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| 43355-P1 PRIMARY | Bosch Security Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 43355 | 5/9 Secondary reference Bosch Security Systems, Llc |
NSN 3020-01-248-6899 is a Pulley,groove, manufactured by Bosch Security Systems, Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-248-6899 has 1 manufacturer part number on file: 43355-P1 (Bosch Security Systems, Llc).
3 possible matches (shared part number, not a government interchangeability claim): 4320-01-302-6658, 4820-01-311-5530, 4810-01-373-5679. Verify interchangeability with system specifications before substitution.
Key specifications for 43355-P1: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 0.171 INCHES NOMINAL IN. 19 specifications are 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.