PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4178Cover,hydraulic,pump-Motor

Smith Meter Inc Parts Opn · NSN 4320-00-399-1312 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-399-1312 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-399-1312. Primary manufacturer part number: 4178.
Features
  • Cover,hydraulic,pump-Motor — FSC 4320
  • Body Diameter: 4.750 INCHES NOMINAL IN
  • Body Length: 0.875 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Specific Use: SUCTION COVER
  • 2 verified cross-references
  • Primary manufacturer: Smith Meter Inc Parts Opn
Applications
  • Applications requiring Copper Alloy construction
General Description

The Cover,hydraulic,pump-Motor, cataloged under National Stock Number 4320-00-399-1312, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Smith Meter Inc Parts Opn. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4320-00-399-1312
Primary Part Number4178
Item NameCover,hydraulic,pump-Motor
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerSmith Meter Inc Parts Opn
StatusACTIVE
Body Diameter4.750 INCHES NOMINAL IN
Body Length0.875 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Specific UseSUCTION COVER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5970-00-065-4872 INTERCHANGEABLE
Insulator,cover
1560-00-141-94451327-512540M1 INTERCHANGEABLE
Adapter,pressure Fuel Servicing
Parker Hannifin Corporation Div Aerospace Group Headquarters
5977-00-379-43494178 INTERCHANGEABLE
Brush,electrical Contact
Magnetics Intl Inc
5340-00-501-61954178 INTERCHANGEABLE
Strap,retaining
Abb Installation Products Inc
5920-00-817-64274178 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
5950-00-992-37663108 INTERCHANGEABLE
Reactor
Inrcore, Llc Div Inrcore
4240-01-149-92084178CL INTERCHANGEABLE
Visor,faceshield,industrial
Fibre-Metal Products Co Inc
5935-01-318-080877C718606P001 INTERCHANGEABLE
Connector,receptacle,electrical
Lockheed Martin Corporation Div Rms
5940-01-605-11954178 INTERCHANGEABLE
Post,binding,electrical
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
4178 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
4178 PRIMARY Smith Meter Inc Parts Opn (USA)
Related Parts
5970-00-065-4872INTERCHANGEABLE
INSULATOR,COVER
1560-00-141-9445INTERCHANGEABLE
ADAPTER,PRESSURE FUEL SERVICING
1327-512540M1
5977-00-379-4349INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
4178
5340-00-501-6195INTERCHANGEABLE
STRAP,RETAINING
4178
5920-00-817-6427INTERCHANGEABLE
FUSEHOLDER,BLOCK
4178
5950-00-992-3766INTERCHANGEABLE
REACTOR
3108
4240-01-149-9208INTERCHANGEABLE
VISOR,FACESHIELD,INDUSTRIAL
4178CL
5935-01-318-0808INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
77C718606P001
5940-01-605-1195INTERCHANGEABLE
POST,BINDING,ELECTRICAL
4178

Frequently Asked Questions

What is NSN 4320-00-399-1312?

NSN 4320-00-399-1312 is a Cover,hydraulic,pump-Motor, manufactured by Smith Meter Inc Parts Opn, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-399-1312?

NSN 4320-00-399-1312 has 2 cross-referenced part numbers: 4178 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 4178 (Smith Meter Inc Parts Opn).

What NSN replaces 4320-00-399-1312?

There are 9 known substitutes for 4320-00-399-1312: 5970-00-065-4872, 1560-00-141-9445, 5977-00-379-4349 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4178?

Key specifications for 4178: Body Diameter: 4.750 INCHES NOMINAL IN; End Item Identification: PROSSER IND MODEL 777D; Body Length: 0.875 INCHES NOMINAL IN; 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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