PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33405Pipe,exhaust

Harbormaster Marine, Inc · NSN 2990-01-080-7569 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-080-7569 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-080-7569. Primary manufacturer part number: 33405.
Features
  • Pipe,exhaust — FSC 2990
  • Wall Thickness: 0.1250 INCHES NOMINAL IN
  • Design Form: STRAIGHT
  • Nominal Overall Length: 15.000 INCHES IN
  • Nominal Outside Diameter: 6.250 INCHES IN
  • Material: STEEL
  • 1 verified cross-reference
  • Primary manufacturer: Harbormaster Marine, Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel construction
General Description

The Pipe,exhaust, cataloged under National Stock Number 2990-01-080-7569, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Harbormaster Marine, Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-080-7569
Primary Part Number33405
Item NamePipe,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerHarbormaster Marine, Inc
StatusACTIVE
Wall Thickness0.1250 INCHES NOMINAL IN
Design FormSTRAIGHT
Nominal Overall Length15.000 INCHES IN
Nominal Outside Diameter6.250 INCHES IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5325-00-202-2515 INTERCHANGEABLE
Grommet,nonmetallic
5935-00-258-037533405 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Beta Labs Inc a-B and Millen Mfg Div
5895-00-518-4954CY907GPN INTERCHANGEABLE
Case,electrical Equipment Cabine
Joint Electronics Type Designation System
2910-00-604-81215228313 INTERCHANGEABLE
Parts Kit,fuel Injector,diesel E
Rolls-Royce Solutions America Inc
5365-00-998-1867 INTERCHANGEABLE
Bushing
2910-01-146-109933405 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5820-01-384-357069-00620-001 INTERCHANGEABLE
Receiver-Transmitter,radio
Raytheon Company
7290-01-644-501633405 INTERCHANGEABLE
Cleaner,steam,pressure Jet
Kerr Corporation
7025-01-648-3991C3850-NM-2-10G INTERCHANGEABLE
Interface Unit,automatic Data Pr
Cisco Systems Inc
Cross-Reference Index
Part NumberManufacturer
33405 PRIMARY Harbormaster Marine, Inc (USA)
Related Parts
5325-00-202-2515INTERCHANGEABLE
GROMMET,NONMETALLIC
5935-00-258-0375INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
33405
5895-00-518-4954INTERCHANGEABLE
CASE,ELECTRICAL EQUIPMENT CABINE
CY907GPN
2910-00-604-8121INTERCHANGEABLE
PARTS KIT,FUEL INJECTOR,DIESEL E
5228313
5365-00-998-1867INTERCHANGEABLE
BUSHING
2910-01-146-1099INTERCHANGEABLE
FILTER ELEMENT,FLUID
33405
5820-01-384-3570INTERCHANGEABLE
RECEIVER-TRANSMITTER,RADIO
69-00620-001
7290-01-644-5016INTERCHANGEABLE
CLEANER,STEAM,PRESSURE JET
33405
7025-01-648-3991INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
C3850-NM-2-10G

Frequently Asked Questions

What is NSN 2990-01-080-7569?

NSN 2990-01-080-7569 is a Pipe,exhaust, manufactured by Harbormaster Marine, Inc, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-080-7569?

NSN 2990-01-080-7569 has 1 cross-referenced part number: 33405 (Harbormaster Marine, Inc).

What NSN replaces 2990-01-080-7569?

There are 9 known substitutes for 2990-01-080-7569: 5325-00-202-2515, 5935-00-258-0375, 5895-00-518-4954 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33405?

Key specifications for 33405: Wall Thickness: 0.1250 INCHES NOMINAL IN; Design Form: STRAIGHT; Nominal Overall Length: 15.000 INCHES IN; Nominal Outside Diameter: 6.250 INCHES IN. 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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