The Pulley,groove, cataloged under National Stock Number 3020-00-110-5327, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 20 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-110-5327 |
| Primary Part Number | 2559847-1 |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | CABLE TENSION,WEAPONS LOADER |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.750 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Outside Diameter | 5.500 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.313 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 1 |
| V Groove Angle in Deg | 61.9 |
| Surface Treatment | ANODIZE |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.624 INCHES MINIMUM AND 0.626 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY OVERALL |
| Face Width | 0.750 INCHES NOMINAL IN |
| Groove Width | 0.375 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 |
|---|---|
| 2559847-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 2559847-1 | Deval Life Cycle Support Llc (USA) |
| Reference | Meaning |
|---|---|
| 2559847 | 5/9 Secondary reference Gse Production and Support Llc Dba Gse Spares |
| 2559847 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-110-5327 is a Pulley,groove, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-110-5327 has 2 manufacturer part numbers on file: 2559847-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 2559847-1 (Deval Life Cycle Support Llc).
1 possible match (shared part number, not a government interchangeability claim): 3020-00-944-0064. Verify interchangeability with system specifications before substitution.
Key specifications for 2559847-1: FSC Application Data: CABLE TENSION,WEAPONS LOADER; Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED. 20 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.