NSN 3020-01-491-3440 · NIIN 014913440 · Part number 167-6985306 PART 37
Naval Sea Systems Command · FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain · FSG 30 — Mechanical Power Transmission Equipment · CAGE 53711
Government record, cited
NSN 3020-01-491-3440 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-491-3440. Manufacturer of record part number: 167-6985306 PART 37.
Also searched as3020-01-491-3440 ·
3020014913440 ·
NIIN 014913440 ·
01-491-3440 ·
FSC 3020 Gears, Pulleys, Sprockets, and Transmission Chain · CAGE 53711 · 167-6985306 PART 37 · H542-1701 PART 37 · H542-1701 · 6985306
Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Material: STEEL COMP 4340 OVERALL
1 manufacturer part number on file
Manufacturer of record: Naval Sea Systems Command
Identification
NSN: 3020-01-491-3440
NIIN: 014913440
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
FSG: 30 — Mechanical Power Transmission Equipment
Primary part number: 167-6985306 PART 37
Manufacturer: Naval Sea Systems Command
General Description
The Gear Sector,bevel, cataloged under National Stock Number 3020-01-491-3440, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
3020-01-491-3440
Primary Part Number
167-6985306 PART 37
Item Name
Gear Sector,bevel
FSC / FSG
3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain
Manufacturer
Naval Sea Systems Command
Status
ACTIVE
Teeth Quantity
11
Hardness Rating
30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Material
STEEL COMP 4340 OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL B — Remove Demilitarization Key Points
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5360-01-491-3576167-6985306 PART 88POSSIBLE MATCH
SPRING,HELICAL,TORSION
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-6625167-6985306 PART 28POSSIBLE MATCH
DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-6631167-6985306 PART 30POSSIBLE MATCH
DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-6634167-6985306 PART 29POSSIBLE MATCH
DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-6944167-6985306 PART 94POSSIBLE MATCH
SHOE,DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-6961167-6985306 PART 14POSSIBLE MATCH
SPIDER,DOG,SCUTTLE
Possible match (shared part number)Naval Sea Systems Command
2040-01-491-7434167-6985306 PART A1POSSIBLE MATCH
DOOR,METAL,MARINE STRUCTURAL
Possible match (shared part number)Naval Sea Systems Command
2040-01-500-5293167-6985306-96POSSIBLE MATCH
DOG,DOOR,MARINE
Possible match (shared part number)Naval Sea Systems Command
NSN 3020-01-491-3440 is a Gear Sector,bevel, 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 3020-01-491-3440?
NSN 3020-01-491-3440 has 1 manufacturer part number on file: 167-6985306 PART 37 (Naval Sea Systems Command).
What NSN replaces 3020-01-491-3440?
8 possible matches (shared part number, not a government interchangeability claim): 5360-01-491-3576, 2040-01-491-6625, 2040-01-491-6631. Verify interchangeability with system specifications before substitution.
What are the specifications of 167-6985306 PART 37?
Key specifications for 167-6985306 PART 37: Teeth Quantity: 11; Hardness Rating: 30.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL; Part Name Assigned by Controlling Agency: GEAR, TOGGLE BOTTOM; End Item Identification: LOS ANGELES CLASS (SSN). 3 specifications are documented in the U.S. Government catalog.
Is NSN 3020-01-491-3440 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 3020-01-491-3440?
NSN 3020-01-491-3440 has DEMIL Code B. 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.