PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

41991Cylinder,actuating,linear

Moog Inc. Dba Ampac-Isp Corp · NSN 3040-01-521-4268 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-521-4268 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-521-4268. Primary manufacturer part number: 41991.
Features
  • Cylinder,actuating,linear — FSC 3040
  • Mounting Facility Diameter: 0.781 INCHES NOMINAL SINGLE PORT IN
  • Mounting Provision: UNTHREADED MOUNTING HOLES
  • Mounting Type and Location: FLANGE CENTER SECTION
  • 3 verified cross-references
  • Primary manufacturer: Moog Inc. Dba Ampac-Isp Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cylinder,actuating,linear, cataloged under National Stock Number 3040-01-521-4268, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-521-4268
Primary Part Number41991
Item NameCylinder,actuating,linear
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerMoog Inc. Dba Ampac-Isp Corp
StatusACTIVE
Mounting Facility Diameter0.781 INCHES NOMINAL SINGLE PORT IN
Mounting ProvisionUNTHREADED MOUNTING HOLES
Mounting Type and LocationFLANGE CENTER SECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4530-00-005-76564199-1 INTERCHANGEABLE
Handle Assembly,atomizer
Naval Sea Systems Command
2815-00-652-512141991 INTERCHANGEABLE
Parts Kit,blower and Water Pump
Napco International Llc Dba Napco International Inc
1377-00-677-62814199-1 INTERCHANGEABLE
Cartridge,aircraft Fire Extingui
Quantic Industries, Inc. Dba Quantic-Holex
5950-00-782-8192SM-C-586488 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
41991 PRIMARY Moog Inc. Dba Ampac-Isp Corp (USA)
LA132-41990-TD ITEM NO. 1.8 Moog Inc. Dba Ampac-Isp Corp (USA)
LA132-41990 ITEM 8 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
4530-00-005-7656INTERCHANGEABLE
HANDLE ASSEMBLY,ATOMIZER
4199-1
2815-00-652-5121INTERCHANGEABLE
PARTS KIT,BLOWER AND WATER PUMP
41991
1377-00-677-6281INTERCHANGEABLE
CARTRIDGE,AIRCRAFT FIRE EXTINGUI
4199-1
5950-00-782-8192INTERCHANGEABLE
REACTOR
SM-C-586488

Frequently Asked Questions

What is NSN 3040-01-521-4268?

NSN 3040-01-521-4268 is a Cylinder,actuating,linear, 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 3040-01-521-4268?

NSN 3040-01-521-4268 has 3 cross-referenced part numbers: 41991 (Moog Inc. Dba Ampac-Isp Corp), LA132-41990-TD ITEM NO. 1.8 (Moog Inc. Dba Ampac-Isp Corp), LA132-41990 ITEM 8 (Moog Inc. Dba Ampac-Isp Corp).

What NSN replaces 3040-01-521-4268?

There are 4 known substitutes for 3040-01-521-4268: 4530-00-005-7656, 2815-00-652-5121, 1377-00-677-6281 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 41991?

Key specifications for 41991: Mounting Facility Diameter: 0.781 INCHES NOMINAL SINGLE PORT IN; Special Features: MOUNTING HOLES ARE IN 4 GROUPS OF 4; Overall Length: 172.750 INCHES NOMINAL IN; Mounting Provision: UNTHREADED MOUNTING HOLES. 5 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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