PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

504-0013Cock,shutoff,screw Stem

Cummins Power Generation Inc. · NSN 4820-00-652-3522 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-652-3522 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-652-3522. Primary manufacturer part number: 504-0013.
Features
  • Cock,shutoff,screw Stem — FSC 4820
  • Material: COPPER ALLOY SEAT
  • Thread Quantity Per Inch: 24 FIRST END
  • Connection Style: INVERTED FLARE (TUBE) FIRST END
  • Connection Type: THREADED INTERNAL TUBE FIRST END
  • Nominal Thread Size: 0.125 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Material: COPPER ALLOY BODY
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Seat construction
General Description

The Cock,shutoff,screw Stem, cataloged under National Stock Number 4820-00-652-3522, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references 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: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-652-3522
Primary Part Number504-0013
Item NameCock,shutoff,screw Stem
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCummins Power Generation Inc.
StatusCANCELLED
MaterialCOPPER ALLOY SEAT
Thread Quantity Per Inch24 FIRST END
Connection StyleINVERTED FLARE (TUBE) FIRST END
Connection TypeTHREADED INTERNAL TUBE FIRST END
Nominal Thread Size0.125 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
MaterialCOPPER ALLOY BODY
Thread DirectionRIGHT-HAND SECOND END
Connection TypeTHREADED EXTERNAL PIPE SECOND END
Thread Class2B FIRST END
Seat Angle42.0 DEGREES FIRST END
Connection StylePLAIN (PIPE) SECOND END
Thread DirectionRIGHT-HAND FIRST END
Valve Operation MethodMANUAL
Nominal Thread Size0.738 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Flow Control DeviceDISK
Thread Series DesignatorUNS FIRST END
Supplementary FeaturesTHIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCE, 44940, HAS INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5360-00-050-369119472 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3455-00-232-421920085 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
5950-00-651-5582859808 INTERCHANGEABLE
Transformer,audio Frequency
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-01-126-1009504A-13 INTERCHANGEABLE
Gasket
Zurn Industries Inc Wilkins Regulator Co Div
5930-01-147-6880504-0013 INTERCHANGEABLE
Switch,lever
Continental Electronics Corp
1005-01-708-971219472 INTERCHANGEABLE
Spring,helical,extension
Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Cross-Reference Index
Part NumberManufacturer
504A16 Cummins Power Generation Inc. (USA)
504-0013 PRIMARY Cummins Power Generation Inc. (USA)
504-13 Cummins Power Generation Inc. (USA)
19472A Cummins Power Generation Inc. (USA)
504A13 Cummins Power Generation Inc. (USA)
19472 Cummins Power Generation Inc. (USA)
Related Parts
5360-00-050-3691INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
19472
3455-00-232-4219INTERCHANGEABLE
REAMER,MACHINE
20085
5950-00-651-5582INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
859808
5330-01-126-1009INTERCHANGEABLE
GASKET
504A-13
5930-01-147-6880INTERCHANGEABLE
SWITCH,LEVER
504-0013
1005-01-708-9712INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
19472

Frequently Asked Questions

What is NSN 4820-00-652-3522?

NSN 4820-00-652-3522 is a Cock,shutoff,screw Stem, manufactured by Cummins Power Generation Inc., classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-652-3522?

NSN 4820-00-652-3522 has 6 cross-referenced part numbers: 504A16 (Cummins Power Generation Inc.), 504-0013 (Cummins Power Generation Inc.), 504-13 (Cummins Power Generation Inc.), 19472A (Cummins Power Generation Inc.), 504A13 (Cummins Power Generation Inc.) and 1 more.

What NSN replaces 4820-00-652-3522?

There are 6 known substitutes for 4820-00-652-3522: 5360-00-050-3691, 3455-00-232-4219, 5950-00-651-5582 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 504-0013?

Key specifications for 504-0013: Material: COPPER ALLOY SEAT; Thread Quantity Per Inch: 24 FIRST END; Connection Style: INVERTED FLARE (TUBE) FIRST END; Connection Type: THREADED INTERNAL TUBE FIRST END. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-652-3522 still in active supply?

NSN 4820-00-652-3522 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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