PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-10-4Ball,steel

Carter Ralph B Co · NSN 4320-00-371-4401 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-371-4401 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-371-4401. Primary manufacturer part number: 40-10-4.
Features
  • Ball,steel — FSC 4320
  • General Characteristics Item Description: MATL STEEL CORE COLDED IN RUBBER 5.250 IN. DIA IN
  • 1 verified cross-reference
  • Primary manufacturer: Carter Ralph B Co
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ball,steel, cataloged under National Stock Number 4320-00-371-4401, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Carter Ralph B Co. Government technical data includes 1 verified specification, 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-371-4401
Primary Part Number40-10-4
Item NameBall,steel
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCarter Ralph B Co
StatusACTIVE
General Characteristics Item DescriptionMATL STEEL CORE COLDED IN RUBBER 5.250 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4010-00-282-25474010-4 INTERCHANGEABLE
Chain Assembly,single Leg
Defense Logistics Agency Dba Defense Supply Center Philadelphia
6515-00-515-856540-104 INTERCHANGEABLE
Tube,extension,injection Set
Cobe Laboratories Inc
1680-00-565-739940104 INTERCHANGEABLE
Cover,actuator Swit
Honeywell International Inc. Div Aerospace - Torrance
5940-00-688-4283011-2049-479 INTERCHANGEABLE
Terminal,feedthru
Itt Cannon Rf Products
5330-00-776-82644010-4 INTERCHANGEABLE
Retainer,packing
Hamilton Sundstrand Corporation
6105-00-851-539640104 INTERCHANGEABLE
Stator,motor
Mas Components & Coatings, Llc Dba Mas Components & Coatings Llc
5930-01-009-298540104 INTERCHANGEABLE
Switch Section,rotary
Telephonics Corp/prd Instruments
3040-01-036-151740104 INTERCHANGEABLE
Collar,shaft
Jergens Inc Div Tooling Components Division
5330-01-094-7882 INTERCHANGEABLE
Gasket
4820-01-215-4328253-01 INTERCHANGEABLE
Plunger,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Cross-Reference Index
Part NumberManufacturer
40-10-4 Carter Ralph B Co (USA)
Related Parts
4010-00-282-2547INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
4010-4
6515-00-515-8565INTERCHANGEABLE
TUBE,EXTENSION,INJECTION SET
40-104
1680-00-565-7399INTERCHANGEABLE
COVER,ACTUATOR SWIT
40104
5940-00-688-4283INTERCHANGEABLE
TERMINAL,FEEDTHRU
011-2049-479
5330-00-776-8264INTERCHANGEABLE
RETAINER,PACKING
4010-4
6105-00-851-5396INTERCHANGEABLE
STATOR,MOTOR
40104
5930-01-009-2985INTERCHANGEABLE
SWITCH SECTION,ROTARY
40104
3040-01-036-1517INTERCHANGEABLE
COLLAR,SHAFT
40104
5330-01-094-7882INTERCHANGEABLE
GASKET
4820-01-215-4328INTERCHANGEABLE
PLUNGER,VALVE
253-01
4820-01-216-1089INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
40104-801
4820-01-216-2302INTERCHANGEABLE
SEAT,VALVE
254-01

Frequently Asked Questions

What is NSN 4320-00-371-4401?

NSN 4320-00-371-4401 is a Ball,steel, manufactured by Carter Ralph B Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-371-4401?

NSN 4320-00-371-4401 has 1 cross-referenced part number: 40-10-4 (Carter Ralph B Co).

What NSN replaces 4320-00-371-4401?

There are 12 known substitutes for 4320-00-371-4401: 4010-00-282-2547, 6515-00-515-8565, 1680-00-565-7399 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-10-4?

Key specifications for 40-10-4: General Characteristics Item Description: MATL STEEL CORE COLDED IN RUBBER 5.250 IN. DIA IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com