PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70-103-1Valve,ball

Conbraco Industries Inc · NSN 4820-01-381-1583 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-381-1583 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-381-1583. Primary manufacturer part number: 70-103-1.
Features
  • Valve,ball — FSC 4820
  • Material: STEEL CORROSION RESISTING STEM
  • Material: BRONZE BODY
  • Style Designator: STRAIGHT THRU
  • Valve Operation Method: MANUAL
  • Nominal Outside Diameter: 0.500 INCHES ALL ENDS IN
  • Material: STEEL CORROSION RESISTING FLOW CONTROL DEVICE
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE SEAT
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Corrosion Resisting Stem construction
General Description

The Valve,ball, cataloged under National Stock Number 4820-01-381-1583, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Conbraco Industries Inc. Government technical data includes 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-381-1583
Primary Part Number70-103-1
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerConbraco Industries Inc
StatusACTIVE
MaterialSTEEL CORROSION RESISTING STEM
MaterialBRONZE BODY
Style DesignatorSTRAIGHT THRU
Valve Operation MethodMANUAL
Nominal Outside Diameter0.500 INCHES ALL ENDS IN
MaterialSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-481-5897114-200-0001 INTERCHANGEABLE
Adapter,connector
Northrop Grumman Systems Corporation
6515-01-140-5318L1 INTERCHANGEABLE
Suture,absorbable,surgical
Covidien Sales Llc Dba Covidien Sales
6750-01-443-1166701031 INTERCHANGEABLE
Paper,copying,stabilization Proc
Maxwell Paper Products Co Dba Maxwell Paper Products
1670-01-733-8264701031 INTERCHANGEABLE
Parts Kit,parachute
Butler Parachute Systems, Inc
Cross-Reference Index
Part NumberManufacturer
70-103-1 PRIMARY Conbraco Industries Inc (USA)
2602774-4 Cosmodyne, Llc Dba Cosmodyne Llc (USA)
Related Parts
5935-00-481-5897INTERCHANGEABLE
ADAPTER,CONNECTOR
114-200-0001
6515-01-140-5318INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL
L1
6750-01-443-1166INTERCHANGEABLE
PAPER,COPYING,STABILIZATION PROC
701031
1670-01-733-8264INTERCHANGEABLE
PARTS KIT,PARACHUTE
701031

Frequently Asked Questions

What is NSN 4820-01-381-1583?

NSN 4820-01-381-1583 is a Valve,ball, manufactured by Conbraco Industries Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-381-1583?

NSN 4820-01-381-1583 has 2 cross-referenced part numbers: 70-103-1 (Conbraco Industries Inc), 2602774-4 (Cosmodyne, Llc Dba Cosmodyne Llc).

What NSN replaces 4820-01-381-1583?

There are 4 known substitutes for 4820-01-381-1583: 5935-00-481-5897, 6515-01-140-5318, 6750-01-443-1166 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70-103-1?

Key specifications for 70-103-1: End Item Identification: 1 TON LOX PLA;CONBRACO INDUSTRIES INC; Material: STEEL CORROSION RESISTING STEM; Material: BRONZE BODY; Style Designator: STRAIGHT THRU. 8 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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