The Gear,worm, cataloged under National Stock Number 3020-01-249-0237, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-249-0237 |
| Primary Part Number | W16-4G |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Bore Nominal Diameter | 0.312 INCHES BOTH ENDS IN |
| Helix Angle | 21.7998 DEGREES |
| Hub Nominal Diameter | 0.450 INCHES SECOND END IN |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.250 INCHES SECOND END IN |
| Face Type | STRAIGHT |
| Hardness Rating | 55.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Hub Style Designator | PINNED SECOND END |
| Thread Form Quantity | 4 |
| Nominal Outside Diameter | 0.749 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1144 OVERALL |
| Face Nominal Width | 1.000 INCHES IN |
| 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 |
|---|---|
| W16-4G PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| GQVH (STEEL) PRIMARY | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 11022009 | 7/2 Vendor item drawing reference Combat Capabilities Development Command Armaments Center Dba Us Army Combat Capabilities Development Command Armaments Center |
NSN 3020-01-249-0237 is a Gear,worm, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-249-0237 has 2 manufacturer part numbers on file: W16-4G (Emerson Electric Co Browning Mfg Div), GQVH (STEEL) (Altra Industrial Motion Corp.).
Key specifications for W16-4G: Thread Form Direction: RIGHT-HAND; Bore Nominal Diameter: 0.312 INCHES BOTH ENDS IN; Helix Angle: 21.7998 DEGREES; Hub Nominal Diameter: 0.450 INCHES SECOND END IN. 17 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.