NSN 3020-01-433-8691 · NIIN 014338691 · Part number 752-6406847-14
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-433-8691 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-433-8691. Manufacturer of record part number: 752-6406847-14.
General Characteristics Item Description: INTERNAL INVOLUTE SPLINES THROUGH FULL LENGTH 24 TEETH, 30 DEG PA, MAJ DIA 1.272, PD 1.200, MIN DIA 1.150; INTERNAL THREAD DIA 0.625-11UNC-2B PARALLEL TO SPLINES RIGHT SIDE OF ITEM 1.000 FULL THD DEPTH, MATERIAL CHROMIUM, MOLYBDENUM, AND STEEL
Material: STEEL
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 3020-01-433-8691
NIIN: 014338691
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 752-6406847-14
Manufacturer: Naval Sea Systems Command
General Description
The Link,splined, cataloged under National Stock Number 3020-01-433-8691, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3020-01-433-8691
Primary Part Number
752-6406847-14
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 FULL LENGTH 24 TEETH, 30 DEG PA, MAJ DIA 1.272, PD 1.200, MIN DIA 1.150; INTERNAL THREAD DIA 0.625-11UNC-2B PARALLEL TO SPLINES RIGHT SIDE OF ITEM 1.000 FULL THD DEPTH, MATERIAL CHROMIUM, MOLYBDENUM, AND STEEL
Material
STEEL
Lifecycle & Compliance
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
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
3040-01-433-8694752-6406847-16POSSIBLE MATCH
GUIDE,MECHANICAL
Possible match (shared part number)Naval Sea Systems Command
3040-01-433-8698752-6406847-15POSSIBLE MATCH
GUIDE,MECHANICAL
Possible match (shared part number)Naval Sea Systems Command
3020-01-433-8701752-6406847-55POSSIBLE MATCH
LINK,SPLINED
Possible match (shared part number)Naval Sea Systems Command
1450-01-442-0374752-6406847-64POSSIBLE MATCH
INSERT,HORIZONTAL,L
Possible match (shared part number)Naval Sea Systems Command
1450-01-442-0386752-6406847-62POSSIBLE MATCH
INSERT,HORIZONTAL,L
Possible match (shared part number)Naval Sea Systems Command
1450-01-442-0396752-6406847-68POSSIBLE MATCH
INSERT,HORIZONTAL,L
Possible match (shared part number)Naval Sea Systems Command
1450-01-451-9307752-6406847 FIND 63POSSIBLE MATCH
INSERT,HORIZONTAL
Possible match (shared part number)Naval Sea Systems Command
C/1Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
DF1706-433 FN14
5/9Secondary reference
Huntington Ingalls Inc Div Newport News Shipbuilding
6406847
D/9Drawing number reference only
Naval Sea Systems Command
Related Parts
3040-01-433-8694POSSIBLE MATCH
GUIDE,MECHANICAL
752-6406847-16
3040-01-433-8698POSSIBLE MATCH
GUIDE,MECHANICAL
752-6406847-15
3020-01-433-8701POSSIBLE MATCH
LINK,SPLINED
752-6406847-55
1450-01-442-0374POSSIBLE MATCH
INSERT,HORIZONTAL,L
752-6406847-64
1450-01-442-0386POSSIBLE MATCH
INSERT,HORIZONTAL,L
752-6406847-62
1450-01-442-0396POSSIBLE MATCH
INSERT,HORIZONTAL,L
752-6406847-68
1450-01-451-9307POSSIBLE MATCH
INSERT,HORIZONTAL
752-6406847 FIND 63
Frequently Asked Questions
What is NSN 3020-01-433-8691?
NSN 3020-01-433-8691 is a Link,splined, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
What part numbers are listed for NSN 3020-01-433-8691?
NSN 3020-01-433-8691 has 1 manufacturer part number on file: 752-6406847-14 (Naval Sea Systems Command).
What NSN replaces 3020-01-433-8691?
7 possible matches (shared part number, not a government interchangeability claim): 3040-01-433-8694, 3040-01-433-8698, 3020-01-433-8701. Verify interchangeability with system specifications before substitution.
What are the specifications of 752-6406847-14?
Key specifications for 752-6406847-14: Overall Diameter: 3.122 INCHES NOMINAL IN; General Characteristics Item Description: INTERNAL INVOLUTE SPLINES THROUGH FULL LENGTH 24 TEETH, 30 DEG PA, MAJ DIA 1.272, PD 1.200, MIN DIA 1.150; INTERNAL THREAD DIA 0.625-11UNC-2B PARALLEL TO SPLINES RIGHT SIDE OF ITEM 1.000 FULL THD DEPTH, MATERIAL CHROMIUM, MOLYBDENUM, AND 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.
Is NSN 3020-01-433-8691 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
What is the DEMIL code for NSN 3020-01-433-8691?
NSN 3020-01-433-8691 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.