The Gear,worm Wheel, cataloged under National Stock Number 3020-00-560-6441, 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 Breeze-Eastern Llc. Government technical data includes 18 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 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 | 3020-00-560-6441 |
| Primary Part Number | BL1567 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Helix Angle | 15.9500 DEGREES |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | THREAD SERIES DESIGNATOR FULLY THREADED BOTH ENDS |
| Throat Nominal Radius | 0.219 INCHES IN |
| Face Type | CONCAVE |
| Style Designator | HUBLESS |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Thread Direction | LEFT-HAND BOTH ENDS |
| Nominal Thread Size | 0.250 INCHES BOTH ENDS IN |
| Nominal Outside Diameter | 0.719 INCHES IN |
| Thread Class | 2B BOTH ENDS |
| Pressure Angle | 25.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) BOTH ENDS |
| Mating Thread Lead Quantity | 4 |
| Face Nominal Width | 0.219 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| BL1567 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 3020-00-560-6441 is a Gear,worm Wheel, manufactured by Breeze-Eastern Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-560-6441 has 1 manufacturer part number on file: BL1567 (Breeze-Eastern Llc).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-143-1791. Verify interchangeability with system specifications before substitution.
Key specifications for BL1567: Helix Angle: 15.9500 DEGREES; Teeth Quantity: 20; Body Style: PLAIN, SOLID; Tooth Direction: RIGHT. 18 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.
NSN 3020-00-560-6441 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.