PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38991Gear,spur

Moog Inc. Dba Ampac-Isp Corp · NSN 3020-01-416-1643 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-416-1643 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-416-1643. Primary manufacturer part number: 38991.
Features
  • Gear,spur — FSC 3020
  • Style Designator: PROTRUDING HUBS
  • Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Hub Nominal Diameter: 2.486 INCHES BOTH ENDS IN
  • Body Style: PLAIN, SOLID
  • Material Document and Classification: ASTM A584 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Spline Quantity: 9 BOTH ENDS
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-01-416-1643, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Moog Inc. Dba Ampac-Isp Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-416-1643
Primary Part Number38991
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
Style DesignatorPROTRUDING HUBS
Bore Nominal Diameter1.750 INCHES BOTH ENDS IN
MaterialSTEEL CORROSION RESISTING OVERALL
Hub Nominal Diameter2.486 INCHES BOTH ENDS IN
Body StylePLAIN, SOLID
Material Document and ClassificationASTM A584 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Spline Quantity9 BOTH ENDS
Hub Style DesignatorPLAIN BOTH ENDS
Face Nominal Width2.560 INCHES IN
Bore StyleSTRAIGHT SPLINE BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1680-00-658-44003544530-3 INTERCHANGEABLE
Lock,inertia Reel
The Boeing Company
2530-00-814-3322FD8265 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5365-01-088-3154010883154-04124 INTERCHANGEABLE
Spacer,ring
Dla Aviation Engineering Div Department of Defense
6680-01-098-969338991 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
2540-01-496-6668 INTERCHANGEABLE
Arm,windshield Wiper
Cross-Reference Index
Part NumberManufacturer
1150-38990-2 Moog Inc. Dba Ampac-Isp Corp (USA)
1150-38990 ITEM 2 Moog Inc. Dba Ampac-Isp Corp (USA)
38991 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
1680-00-658-4400INTERCHANGEABLE
LOCK,INERTIA REEL
3544530-3
2530-00-814-3322INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
FD8265
5365-01-088-3154INTERCHANGEABLE
SPACER,RING
010883154-04124
6680-01-098-9693INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
38991
2540-01-496-6668INTERCHANGEABLE
ARM,WINDSHIELD WIPER

Frequently Asked Questions

What is NSN 3020-01-416-1643?

NSN 3020-01-416-1643 is a Gear,spur, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-01-416-1643?

NSN 3020-01-416-1643 has 3 cross-referenced part numbers: 1150-38990-2 (Moog Inc. Dba Ampac-Isp Corp), 1150-38990 ITEM 2 (Moog Inc. Dba Ampac-Isp Corp), 38991 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 3020-01-416-1643?

There are 5 known substitutes for 3020-01-416-1643: 1680-00-658-4400, 2530-00-814-3322, 5365-01-088-3154 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38991?

Key specifications for 38991: Part Name Assigned by Controlling Agency: PINION; End Item Identification: WEAPONS SYSTEM JG, SEAWOLF CLASS SSN; Style Designator: PROTRUDING HUBS; Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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