PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39249Head,linear Actuating Cylinder

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 3040-01-478-3378 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-478-3378 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-478-3378. Primary manufacturer part number: 39249.
Features
  • Head,linear Actuating Cylinder — FSC 3040
  • Material: COPPER ALLOY
  • Model for Which Designed: 41042
  • 6 verified cross-references
  • Primary manufacturer: Electric Boat Corporation Div General Dynamics Electric Boat
Applications
  • Applications requiring Copper Alloy construction
General Description

The Head,linear Actuating Cylinder, cataloged under National Stock Number 3040-01-478-3378, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 2 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
NSN3040-01-478-3378
Primary Part Number39249
Item NameHead,linear Actuating Cylinder
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
MaterialCOPPER ALLOY
Model for Which Designed41042
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-070-945239249 INTERCHANGEABLE
Wrench,nozzle
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3040-01-415-776139249 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Allied Systems Company Dba Allied Systems Co
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
3040-01-478-338239250 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
3020-01-478-350539248 INTERCHANGEABLE
Gear Rack
Moog Inc. Dba Ampac-Isp Corp
3040-01-478-362840014 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Electric Boat Corporation Div General Dynamics Electric Boat
Cross-Reference Index
Part NumberManufacturer
41042-39245 ITEM 4 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
41042-39245 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
41042-39245 Moog Inc. Dba Ampac-Isp Corp (USA)
41042-39245 ITEM 4 Moog Inc. Dba Ampac-Isp Corp (USA)
39249 PRIMARY Electric Boat Corporation Div General Dynamics Electric Boat (USA)
39249 Moog Inc. Dba Ampac-Isp Corp (USA)
Related Parts
5120-00-070-9452INTERCHANGEABLE
WRENCH,NOZZLE
39249
3040-01-415-7761INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
39249
4320-01-477-9374INTERCHANGEABLE
CYLINDER SLEEVE
39253
4320-01-477-9376INTERCHANGEABLE
CYLINDER SLEEVE
39254
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
3020-01-478-3505INTERCHANGEABLE
GEAR RACK
39248
3040-01-478-3628INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
40014
3040-01-478-3632INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
39256
3040-01-478-3707INTERCHANGEABLE
CAM,CONTROL
39450

Frequently Asked Questions

What is NSN 3040-01-478-3378?

NSN 3040-01-478-3378 is a Head,linear Actuating Cylinder, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-478-3378?

NSN 3040-01-478-3378 has 6 cross-referenced part numbers: 41042-39245 ITEM 4 (Electric Boat Corporation Div General Dynamics Electric Boat), 41042-39245 (Electric Boat Corporation Div General Dynamics Electric Boat), 41042-39245 (Moog Inc. Dba Ampac-Isp Corp), 41042-39245 ITEM 4 (Moog Inc. Dba Ampac-Isp Corp), 39249 (Electric Boat Corporation Div General Dynamics Electric Boat) and 1 more.

What NSN replaces 3040-01-478-3378?

There are 12 known substitutes for 3040-01-478-3378: 5120-00-070-9452, 3040-01-415-7761, 4320-01-477-9374 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 39249?

Key specifications for 39249: Part Name Assigned by Controlling Agency: C-1 PORT HEAD; Material: COPPER ALLOY; Model for Which Designed: 41042; Special Features: MATERIAL PER ASTM B150 ALLOY C63200; CONNECTED BY 8 HEX HEAD CAP SCREWS WITH THREADED INSERTS; HAS ONE PORT (C-1). 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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