PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-580-1 1/4Valve,ball

Nibco Inc · NSN 4820-00-052-4651 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-052-4651 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-052-4651. Primary manufacturer part number: T-580-1 1/4.
Features
  • Valve,ball — FSC 4820
  • Style Designator: STRAIGHT THRU
  • Material: COPPER ALLOY BODY
  • Media for Which Designed: STEAM FIRST RESPONSE
  • Material Document and Classification: ASTM B-584 ALLOY 845 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
  • Material Document and Classification: ASTM B-584 ALLOY 845 ASSN STD SINGLE MATERIAL RESPONSE BODY
  • Supplementary Features: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCE, 12168, HAS INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Body construction
General Description

The Valve,ball, cataloged under National Stock Number 4820-00-052-4651, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Nibco Inc. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, 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
NSN4820-00-052-4651
Primary Part NumberT-580-1 1/4
Item NameValve,ball
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNibco Inc
StatusACTIVE
Style DesignatorSTRAIGHT THRU
MaterialCOPPER ALLOY BODY
Media for Which DesignedSTEAM FIRST RESPONSE
Material Document and ClassificationASTM B-584 ALLOY 845 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
Material Document and ClassificationASTM B-584 ALLOY 845 ASSN STD SINGLE MATERIAL RESPONSE BODY
Supplementary FeaturesTHIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCE, 12168, HAS INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
Nominal Thread Size1.250 INCHES ALL ENDS IN
Operating Pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Operating Pressure400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
MaterialCOPPER ALLOY FLOW CONTROL DEVICE
Nondefinitive Spec/std Data2 TYPE AND 400 CLASS AND 3 STYLE
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAT
Thread Series DesignatorNPT ALL ENDS
Maximum Operating Temp150.0 FAHRENHEIT SECOND RESPONSE DEGF
Connection StylePLAIN,OPTIONAL END(PIPE) ALL ENDS
Material Document and ClassificationASTM B-371 ALLOY C69400 ASSN STD SINGLE MATERIAL RESPONSE STEM
Thread DirectionRIGHT-HAND ALL ENDS
Bonnet Attachment MethodBOLTED
Bonnet TypeINSIDE SCREW
MaterialCOPPER ALLOY 694 STEM
Valve Operation MethodMANUAL
Maximum Operating Temp360.0 FAHRENHEIT FIRST RESPONSE DEGF
MaterialPLASTIC POLYTETRAFLUOROETHYLENE PACKING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-052-4646 INTERCHANGEABLE
Valve,ball
4820-00-052-4647MSSSP110-TY 2 CL A ST 3 SZ .375 INTERCHANGEABLE
Valve,ball
Sae International Dba Sae International
4820-00-052-4652MSSSP110-TY 2 CL 600 ST 3 SZ 1.5 INTERCHANGEABLE
Valve,ball
Sae International Dba Sae International
4820-00-052-4653MSS-SP110 TY2,CLA,ST3,SZ2 IN INTERCHANGEABLE
Valve,ball
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
5905-00-117-3890 INTERCHANGEABLE
Resistor,fixed,composition
4820-00-242-3183BA-300 INTERCHANGEABLE
Valve,ball
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-00-256-2224MSS-SP-110 3/8IN FIG1C INTERCHANGEABLE
Valve,ball
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
4820-00-331-1777 INTERCHANGEABLE
Valve,ball
4820-01-131-95215X716 INTERCHANGEABLE
Valve,ball
W.w. Grainger, Inc. Div Government Sales Division
4820-01-161-091170-101-01 INTERCHANGEABLE
Valve,ball
Aalberts Integrated Piping Systems Americas, Inc.
Cross-Reference Index
Part NumberManufacturer
T-580-1 1/4 Nibco Inc (USA)
WW-V-35 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
4820000524651 Sourceamerica (USA)
1001795 Tld Ace Corp Div Tld Ace (USA)
4820000524651 National Industries for the Blind (USA)
MSS SP-110 Manufacturers Standardization Society of the Valve and Fittings Industry Inc (USA)
Related Parts
4820-00-052-4646INTERCHANGEABLE
VALVE,BALL
4820-00-052-4647INTERCHANGEABLE
VALVE,BALL
MSSSP110-TY 2 CL A ST 3 SZ .375
4820-00-052-4652INTERCHANGEABLE
VALVE,BALL
MSSSP110-TY 2 CL 600 ST 3 SZ 1.5
4820-00-052-4653INTERCHANGEABLE
VALVE,BALL
MSS-SP110 TY2,CLA,ST3,SZ2 IN
5905-00-117-3890INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
4820-00-242-3183INTERCHANGEABLE
VALVE,BALL
BA-300
4820-00-256-2224INTERCHANGEABLE
VALVE,BALL
MSS-SP-110 3/8IN FIG1C
4820-00-331-1777INTERCHANGEABLE
VALVE,BALL
4820-01-131-9521INTERCHANGEABLE
VALVE,BALL
5X716
4820-01-161-0911INTERCHANGEABLE
VALVE,BALL
70-101-01
4820-01-163-9982INTERCHANGEABLE
VALVE,BALL
6-1-6200-44
4820-01-172-8229INTERCHANGEABLE
VALVE,BALL
SP-B-12-S-2

Frequently Asked Questions

What is NSN 4820-00-052-4651?

NSN 4820-00-052-4651 is a Valve,ball, manufactured by Nibco Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-052-4651?

NSN 4820-00-052-4651 has 6 cross-referenced part numbers: T-580-1 1/4 (Nibco Inc), WW-V-35 (Federal Specifications Promulgated by General Services Administration Washington DC), 4820000524651 (Sourceamerica), 1001795 (Tld Ace Corp Div Tld Ace), 4820000524651 (National Industries for the Blind) and 1 more.

What NSN replaces 4820-00-052-4651?

There are 12 known substitutes for 4820-00-052-4651: 4820-00-052-4646, 4820-00-052-4647, 4820-00-052-4652 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-580-1 1/4?

Key specifications for T-580-1 1/4: Style Designator: STRAIGHT THRU; Material: COPPER ALLOY BODY; Media for Which Designed: STEAM FIRST RESPONSE; Material Document and Classification: ASTM B-584 ALLOY 845 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE. 24 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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