PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104311Valve,ball

Hammonds Technical Services, Inc. · NSN 4820-01-721-4375 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-721-4375 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-721-4375. Primary manufacturer part number: 104311.
Features
  • Valve,ball — FSC 4820
  • Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
  • Operating Pressure: 1.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Valve Size: 0.250 INCHES IN
  • Valve Operation Method: AUTOMATIC
  • 1 verified cross-reference
  • Primary manufacturer: Hammonds Technical Services, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-721-4375, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hammonds Technical Services, Inc.. Government technical data includes 4 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-721-4375
Primary Part Number104311
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHammonds Technical Services, Inc.
StatusACTIVE
Style DesignatorSTRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.
Operating Pressure1.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Valve Size0.250 INCHES IN
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
1220-00-012-52032187747 INTERCHANGEABLE
Patch,cable
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-00-644-0110 INTERCHANGEABLE
Boot,dust and Moisture Seal
5310-01-138-6332 INTERCHANGEABLE
Washer,flat
5305-01-270-5433 INTERCHANGEABLE
Screw,cap,hexagon Head
6685-01-293-4505 INTERCHANGEABLE
Gage
4820-01-516-6891 INTERCHANGEABLE
Gear Operator,valve
Cross-Reference Index
Part NumberManufacturer
104311 PRIMARY Hammonds Technical Services, Inc. (USA)
Related Parts
1220-00-012-5203INTERCHANGEABLE
PATCH,CABLE
2187747
5930-00-644-0110INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5310-01-138-6332INTERCHANGEABLE
WASHER,FLAT
5305-01-270-5433INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
6685-01-293-4505INTERCHANGEABLE
GAGE
4820-01-516-6891INTERCHANGEABLE
GEAR OPERATOR,VALVE

Frequently Asked Questions

What is NSN 4820-01-721-4375?

NSN 4820-01-721-4375 is a Valve,ball, manufactured by Hammonds Technical Services, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-721-4375?

NSN 4820-01-721-4375 has 1 cross-referenced part number: 104311 (Hammonds Technical Services, Inc.).

What NSN replaces 4820-01-721-4375?

There are 6 known substitutes for 4820-01-721-4375: 1220-00-012-5203, 5930-00-644-0110, 5310-01-138-6332 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104311?

Key specifications for 104311: Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.; Part Name Assigned by Controlling Agency: 0.250 INCHES BALL CHECK VALVE IN; Operating Pressure: 1.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Valve Size: 0.250 INCHES IN. 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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