PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9-0540-01Ring,wearing

Air & Liquid Systems Corporation Dba Buffalo Pumps · NSN 4320-01-388-5532 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-388-5532 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-388-5532. Primary manufacturer part number: 9-0540-01.
Features
  • Ring,wearing — FSC 4320
  • 4 verified cross-references
  • Primary manufacturer: Air & Liquid Systems Corporation Dba Buffalo Pumps
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ring,wearing, cataloged under National Stock Number 4320-01-388-5532, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Air & Liquid Systems Corporation Dba Buffalo Pumps. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-388-5532
Primary Part Number9-0540-01
Item NameRing,wearing
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerAir & Liquid Systems Corporation Dba Buffalo Pumps
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5950-00-471-2182905400-1 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
NA1740 Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
9-0540-01 PRIMARY Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
9-0540-01 .050U Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
9-0540-01.050US Air & Liquid Systems Corporation Dba Buffalo Pumps (USA)
Related Parts
5950-00-471-2182INTERCHANGEABLE
TRANSFORMER,POWER
905400-1

Frequently Asked Questions

What is NSN 4320-01-388-5532?

NSN 4320-01-388-5532 is a Ring,wearing, manufactured by Air & Liquid Systems Corporation Dba Buffalo Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-388-5532?

NSN 4320-01-388-5532 has 4 cross-referenced part numbers: NA1740 (Air & Liquid Systems Corporation Dba Buffalo Pumps), 9-0540-01 (Air & Liquid Systems Corporation Dba Buffalo Pumps), 9-0540-01 .050U (Air & Liquid Systems Corporation Dba Buffalo Pumps), 9-0540-01.050US (Air & Liquid Systems Corporation Dba Buffalo Pumps).

What NSN replaces 4320-01-388-5532?

There is 1 known substitute for 4320-01-388-5532: 5950-00-471-2182. Verify interchangeability with system specifications before substitution.

What are the specifications of 9-0540-01?

Key specifications for 9-0540-01: Special Features: RING IS 0.050 IN. UNDERSIZED IN. 1 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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