The Gear,spur, cataloged under National Stock Number 3020-00-877-7398, 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 Babcock & Wilcox Co. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-877-7398 |
| Primary Part Number | 305329-0114 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Babcock & Wilcox Co |
| Status | ACTIVE |
| Keyway Nominal Width | 0.252 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.004 INCHES BOTH ENDS IN |
| Teeth Quantity | 12 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM HUB |
| Style Designator | HUBLESS |
| Material Document and Classification | FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 2.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 2.331 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.622 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Face Nominal Width | 2.312 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 |
|---|---|
| 305329-0114 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| 305329-0114 | 5/9 Secondary reference Diamond Electronics Inc |
| 305329-0114 | 3/9 Design control — primary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 305329-0114 | C/1 Advisory reference — outside the item-of-supply concept Diamond Power International, Inc. |
NSN 3020-00-877-7398 is a Gear,spur, manufactured by Babcock & Wilcox Co, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-877-7398 has 1 manufacturer part number on file: 305329-0114 (Babcock & Wilcox Co).
Key specifications for 305329-0114: Keyway Nominal Width: 0.252 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.004 INCHES BOTH ENDS IN; Teeth Quantity: 12; Body Style: PLAIN, SOLID. 15 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.