The Gear,spur, cataloged under National Stock Number 3020-01-399-5665, 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 Sea Systems Command. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-399-5665 |
| Primary Part Number | DF1500-249 PC 13 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Keyway Nominal Width | 0.251 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.001 INCHES SECOND END IN |
| Teeth Quantity | 70 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Mounting Hole Type and Quantity | 8 THREADED AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.181 INCHES SECOND END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-B-728 CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 8.7500 INCHES NOMINAL IN |
| Tooth Form | STUB |
| Hub Style Designator | PLAIN SECOND END |
| Mounting Hole Nominal Thread Size | 0.190 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 8.998 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.678 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | BRONZE OVERALL |
| Bolt Hole Circle Nominal Diameter | 8.000 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.627 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 |
|---|---|
| DF1500-249 PC 13 PRIMARY | Naval Sea Systems Command (USA) |
| 167-6404330 FIND 13 PRIMARY | Naval Sea Systems Command (USA) |
| DF1500-249-13 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 167-6404330 | D/9 Drawing number reference only Naval Sea Systems Command |
| 211054607 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 3020-01-399-5665 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-399-5665 has 3 manufacturer part numbers on file: DF1500-249 PC 13 (Naval Sea Systems Command), 167-6404330 FIND 13 (Naval Sea Systems Command), DF1500-249-13 (Naval Sea Systems Command).
7 possible matches (shared part number, not a government interchangeability claim): 3020-01-399-6281, 3020-01-399-6282, 3020-01-400-2040. Verify interchangeability with system specifications before substitution.
Key specifications for DF1500-249 PC 13: Keyway Nominal Width: 0.251 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.001 INCHES SECOND END IN; Teeth Quantity: 70. 22 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.