PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39248Gear Rack

Moog Inc. Dba Ampac-Isp Corp · NSN 3020-01-478-3505 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-01-478-3505 — this item is cataloged by the U.S. Government under National Stock Number 3020-01-478-3505. Primary manufacturer part number: 39248.
Features
  • Gear Rack — FSC 3020
  • Teeth Quantity: 10
  • Teeth Type: SPUR
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
  • Material Document and Classification: AISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 4140 OVERALL
  • 6 verified cross-references
  • Primary manufacturer: Moog Inc. Dba Ampac-Isp Corp
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Gear Rack, cataloged under National Stock Number 3020-01-478-3505, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-01-478-3505
Primary Part Number39248
Item NameGear Rack
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
Teeth Quantity10
Teeth TypeSPUR
Hardness Rating32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
Material Document and ClassificationAISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 4140 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5815-00-105-8712 INTERCHANGEABLE
Teletypewriter Subassembly
5961-00-982-6780 INTERCHANGEABLE
Transistor
5995-01-129-5458 INTERCHANGEABLE
Cable Assy Power
4320-01-477-937439253 INTERCHANGEABLE
Cylinder Sleeve
Moog Inc. Dba Ampac-Isp Corp
4320-01-477-937639254 INTERCHANGEABLE
Cylinder Sleeve
Moog Inc. Dba Ampac-Isp Corp
3040-01-478-337839249 INTERCHANGEABLE
Head,linear Actuating Cylinder
Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-478-338239250 INTERCHANGEABLE
Head,linear Actuating Cylinder
Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-478-338439251 INTERCHANGEABLE
Head,linear Actuating Cylinder
Electric Boat Corporation Div General Dynamics Electric Boat
3040-01-478-338539252 INTERCHANGEABLE
Cap,linear Actuating Cylinder
Electric Boat Corporation Div General Dynamics Electric Boat
3020-01-478-350339247 INTERCHANGEABLE
Gear,spur
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
41042-39245 ITEM 3 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
41042-39245 Moog Inc. Dba Ampac-Isp Corp (USA)
39248 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
39248 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
41042-39245 ITEM 3 Moog Inc. Dba Ampac-Isp Corp (USA)
41042-39245 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
Related Parts
5815-00-105-8712INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
5961-00-982-6780INTERCHANGEABLE
TRANSISTOR
5995-01-129-5458INTERCHANGEABLE
CABLE ASSY POWER
4320-01-477-9374INTERCHANGEABLE
CYLINDER SLEEVE
39253
4320-01-477-9376INTERCHANGEABLE
CYLINDER SLEEVE
39254
3040-01-478-3378INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
39249
3040-01-478-3382INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
39250
3040-01-478-3384INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
39251
3040-01-478-3385INTERCHANGEABLE
CAP,LINEAR ACTUATING CYLINDER
39252
3020-01-478-3503INTERCHANGEABLE
GEAR,SPUR
39247
3040-01-478-3628INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
40014
3040-01-478-3632INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
39256

Frequently Asked Questions

What is NSN 3020-01-478-3505?

NSN 3020-01-478-3505 is a Gear Rack, 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 3020-01-478-3505?

NSN 3020-01-478-3505 has 6 cross-referenced part numbers: 41042-39245 ITEM 3 (Electric Boat Corporation Div General Dynamics Electric Boat), 41042-39245 (Moog Inc. Dba Ampac-Isp Corp), 39248 (Electric Boat Corporation Div General Dynamics Electric Boat), 39248 (Moog Inc. Dba Ampac-Isp Corp), 41042-39245 ITEM 3 (Moog Inc. Dba Ampac-Isp Corp) and 1 more.

What NSN replaces 3020-01-478-3505?

There are 12 known substitutes for 3020-01-478-3505: 5815-00-105-8712, 5961-00-982-6780, 5995-01-129-5458 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39248?

Key specifications for 39248: End Item Identification: ROTARY HYDRAULIC ACTUATOR, MODEL 41042; SEAWOLF; Teeth Quantity: 10; Teeth Type: SPUR; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL. 7 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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