PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

110145-001Seat,valve

Real-Time Laboratories, Llc · NSN 4820-01-334-9246 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-334-9246 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-334-9246. Primary manufacturer part number: 110145-001.
Features
  • Seat,valve — FSC 4820
  • Seating Surface Shape: ANGULAR
  • Style Designator: PLAIN FLANGED
  • Material: STEEL COMP 52100 OVERALL
  • Hardness Rating: 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
  • Flange Seat to Disk End Height: 0.090 INCHES NOMINAL IN
  • Seat Angle in Deg: 90.000 NOMINAL
  • Flange Diameter: 0.243 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Comp 52100 Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-334-9246, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Real-Time Laboratories, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-334-9246
Primary Part Number110145-001
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerReal-Time Laboratories, Llc
StatusACTIVE
Seating Surface ShapeANGULAR
Style DesignatorPLAIN FLANGED
MaterialSTEEL COMP 52100 OVERALL
Hardness Rating58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL
Flange Seat to Disk End Height0.090 INCHES NOMINAL IN
Seat Angle in Deg90.000 NOMINAL
Flange Diameter0.243 INCHES NOMINAL IN
Body Outside Diameter0.243 INCHES NOMINAL IN
Under Flange Height0.060 INCHES NOMINAL IN
Body Inside Diameter0.041 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-306-7431110-145-1 INTERCHANGEABLE
Nipple,tube
Bell Textron Inc
5998-01-449-2732110145-001 INTERCHANGEABLE
Holder,electrical Card
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
110145-1 Real-Time Laboratories, Llc (USA)
110145-001 PRIMARY Real-Time Laboratories, Llc (USA)
Related Parts
4730-00-306-7431INTERCHANGEABLE
NIPPLE,TUBE
110-145-1
5998-01-449-2732INTERCHANGEABLE
HOLDER,ELECTRICAL CARD
110145-001

Frequently Asked Questions

What is NSN 4820-01-334-9246?

NSN 4820-01-334-9246 is a Seat,valve, manufactured by Real-Time Laboratories, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-334-9246?

NSN 4820-01-334-9246 has 2 cross-referenced part numbers: 110145-1 (Real-Time Laboratories, Llc), 110145-001 (Real-Time Laboratories, Llc).

What NSN replaces 4820-01-334-9246?

There are 2 known substitutes for 4820-01-334-9246: 4730-00-306-7431, 5998-01-449-2732. Verify interchangeability with system specifications before substitution.

What are the specifications of 110145-001?

Key specifications for 110145-001: Seating Surface Shape: ANGULAR; Style Designator: PLAIN FLANGED; Material: STEEL COMP 52100 OVERALL; Hardness Rating: 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM OVERALL. 11 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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