The Link,splined, cataloged under National Stock Number 3020-01-433-8701, 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 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-433-8701 |
| Primary Part Number | 752-6406847-55 |
| Item Name | Link,splined |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 3.122 INCHES NOMINAL IN |
| General Characteristics Item Description | INTERNAL INVOLUTE SPLINES THROUGH LENGTH OF ITEM 24 TEETH, 30 DEG PA, MAJ DIA 1.272, 1.150 MIN DIA,, HOLE PARELLED TO SPLINES DRILL DEPTH 1.500, DIA 0.541 AND THREADED 1.00 DP 0.625-11UNC-2B, MATERIAL CHROMIUM, MOLYBDENUM, STEEL |
| Material | STEEL |
| 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 |
|---|---|
| 752-6406847-55 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| DF1706-433 FN55 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 6406847 FIND 55 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 6406847 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-433-8701 is a Link,splined, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-433-8701 has 1 manufacturer part number on file: 752-6406847-55 (Naval Sea Systems Command).
4 possible matches (shared part number, not a government interchangeability claim): 1450-01-442-0374, 1450-01-442-0386, 1450-01-442-0396. Verify interchangeability with system specifications before substitution.
Key specifications for 752-6406847-55: Overall Diameter: 3.122 INCHES NOMINAL IN; General Characteristics Item Description: INTERNAL INVOLUTE SPLINES THROUGH LENGTH OF ITEM 24 TEETH, 30 DEG PA, MAJ DIA 1.272, 1.150 MIN DIA,, HOLE PARELLED TO SPLINES DRILL DEPTH 1.500, DIA 0.541 AND THREADED 1.00 DP 0.625-11UNC-2B, MATERIAL CHROMIUM, MOLYBDENUM, STEEL; Overall Length: 3.375 INCHES NOMINAL IN; Special Features: USED IN 21" WEAPONS DOLLY ASSEMBLY. 3 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.