PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39720Piston,linear Actuating Cylinder

Moog Inc. Dba Ampac-Isp Corp · NSN 3040-01-479-4976 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-479-4976 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-479-4976. Primary manufacturer part number: 39720.
Features
  • Piston,linear Actuating Cylinder — FSC 3040
  • Outside Diameter: 1.492 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN
  • Ring Groove Quantity: 3
  • Material: COPPER ALLOY
  • 3 verified cross-references
  • Primary manufacturer: Moog Inc. Dba Ampac-Isp Corp
Applications
  • Applications requiring Copper Alloy construction
General Description

The Piston,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-479-4976, is classified within Federal Supply Class 3040 (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 3 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-479-4976
Primary Part Number39720
Item NamePiston,linear Actuating Cylinder
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
Outside Diameter1.492 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN
Ring Groove Quantity3
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-058-8939 INTERCHANGEABLE
Cover,terminal Board
4810-00-218-627139720 INTERCHANGEABLE
Seat,valve
Eaton Aerospace, Llc Dba Jackson South
5835-00-473-100239720 INTERCHANGEABLE
Head,magnetic
Dictaphone Corporation
5340-00-637-1939389-20 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
3030-00-727-8655 INTERCHANGEABLE
Belting,round
3020-01-479-442639712 INTERCHANGEABLE
Gear,spur
Moog Inc. Dba Ampac-Isp Corp
3020-01-479-476039713 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
3040-01-479-497239719 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Moog Inc. Dba Ampac-Isp Corp
3040-01-479-513039717 INTERCHANGEABLE
Cylinder,actuating,linear
Moog Inc. Dba Ampac-Isp Corp
3040-01-479-513239718 INTERCHANGEABLE
Cylinder,actuating,linear
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
4001-39710 Moog Inc. Dba Ampac-Isp Corp (USA)
39720 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
4001-39710 ITEM 10 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
5940-00-058-8939INTERCHANGEABLE
COVER,TERMINAL BOARD
4810-00-218-6271INTERCHANGEABLE
SEAT,VALVE
39720
5835-00-473-1002INTERCHANGEABLE
HEAD,MAGNETIC
39720
5340-00-637-1939INTERCHANGEABLE
CLAMP,LOOP
389-20
3030-00-727-8655INTERCHANGEABLE
BELTING,ROUND
3020-01-479-4426INTERCHANGEABLE
GEAR,SPUR
39712
3020-01-479-4760INTERCHANGEABLE
GEAR RACK
39713
3040-01-479-4972INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
39719
3040-01-479-5130INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
39717
3040-01-479-5132INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
39718
3040-01-479-5133INTERCHANGEABLE
CYLINDER,ACTUATING,LINEAR
39716
3040-01-633-1451INTERCHANGEABLE
ACCUMULATOR,HYDRAULIC

Frequently Asked Questions

What is NSN 3040-01-479-4976?

NSN 3040-01-479-4976 is a Piston,linear Actuating Cylinder, manufactured by Moog Inc. Dba Ampac-Isp Corp, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-479-4976?

NSN 3040-01-479-4976 has 3 cross-referenced part numbers: 4001-39710 (Moog Inc. Dba Ampac-Isp Corp), 39720 (Moog Inc. Dba Ampac-Isp Corp), 4001-39710 ITEM 10 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 3040-01-479-4976?

There are 12 known substitutes for 3040-01-479-4976: 5940-00-058-8939, 4810-00-218-6271, 5835-00-473-1002 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39720?

Key specifications for 39720: Special Features: MATERIAL PER ASTM B150, AL-BRZ, ALLOY C63200; MOUNTED TO GEAR RACK W/COUNTER SUNK SOCKET HEAD CAP SCREW; T SHAPE-SMALLER END 1.492" DIA, LG END CONN TO GEAR RACK 2.119" DIA; 0.611 STROKE; Outside Diameter: 1.492 INCHES MINIMUM AND 2.119 INCHES MAXIMUM IN; Ring Groove Quantity: 3; Material: COPPER ALLOY. 6 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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