PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42393Pipe,exhaust

Walker Mfg Co · NSN 2990-00-401-4027 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-401-4027 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-401-4027. Primary manufacturer part number: 42393.
Features
  • Pipe,exhaust — FSC 2990
  • Design Form: PREBENT
  • End Item Model Number: 1703
  • End Item Source: 89346
  • End Item Name: TRUCK
  • Usage Location: EXHAUST PIPE
  • 11 verified cross-references
  • Primary manufacturer: Walker Mfg Co
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Pipe,exhaust, cataloged under National Stock Number 2990-00-401-4027, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Walker Mfg Co. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, 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
NSN2990-00-401-4027
Primary Part Number42393
Item NamePipe,exhaust
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerWalker Mfg Co
StatusACTIVE
Design FormPREBENT
End Item Model Number1703
End Item Source89346
End Item NameTRUCK
Usage LocationEXHAUST PIPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5365-00-036-0311033968 INTERCHANGEABLE
Ring,nozzle
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4720-00-272-953628090 INTERCHANGEABLE
Hose,air Duct
Gates Corporation
2930-00-377-518942393 INTERCHANGEABLE
Shaft,water Pump Im
Cummins Inc.
3455-00-865-022111650 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
5330-00-948-724042393 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
5950-01-127-388742393 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
6515-01-231-7202280.95 INTERCHANGEABLE
Screw,lag,orthopedic
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5910-01-236-65730280950004 INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Riimic, Llc Dba Sunair Electronics
1680-01-422-4523 INTERCHANGEABLE
Armature,aircraft
Cross-Reference Index
Part NumberManufacturer
895571R1 Navistar International Corporation Dba Navistar (USA)
441583C1 Navistar Intl Corp Truck Br Ohio Plant (USA)
42393 PRIMARY Walker Mfg Co (USA)
895571R2 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
28095 Ap Parts Co Industrial Sales Div (USA)
42393 Walker Michigan Division of Walker Mfg Co (USA)
895571R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
895571R1 Navistar Intl Corp Truck Br Ohio Plant (USA)
895571R2 Navistar International Corporation Dba Navistar (USA)
28095 Goerlichs (USA)
895571R2 Formed Tubes Inc (USA)
Related Parts
5365-00-036-0311INTERCHANGEABLE
RING,NOZZLE
033968
4720-00-272-9536INTERCHANGEABLE
HOSE,AIR DUCT
28090
2930-00-377-5189INTERCHANGEABLE
SHAFT,WATER PUMP IM
42393
3455-00-865-0221INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11650
5330-00-948-7240INTERCHANGEABLE
SEAL,PLAIN ENCASED
42393
5950-01-127-3887INTERCHANGEABLE
TRANSFORMER,POWER
42393
6515-01-231-7202INTERCHANGEABLE
SCREW,LAG,ORTHOPEDIC
280.95
5910-01-236-6573INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
0280950004
1680-01-422-4523INTERCHANGEABLE
ARMATURE,AIRCRAFT

Frequently Asked Questions

What is NSN 2990-00-401-4027?

NSN 2990-00-401-4027 is a Pipe,exhaust, manufactured by Walker Mfg Co, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-401-4027?

NSN 2990-00-401-4027 has 11 cross-referenced part numbers: 895571R1 (Navistar International Corporation Dba Navistar), 441583C1 (Navistar Intl Corp Truck Br Ohio Plant), 42393 (Walker Mfg Co), 895571R2 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 28095 (Ap Parts Co Industrial Sales Div) and 6 more.

What NSN replaces 2990-00-401-4027?

There are 9 known substitutes for 2990-00-401-4027: 5365-00-036-0311, 4720-00-272-9536, 2930-00-377-5189 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42393?

Key specifications for 42393: Design Form: PREBENT; End Item Model Number: 1703; End Item Source: 89346; End Item Name: TRUCK. 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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