PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-111 1/2INValve,gate

Nibco Inc · NSN 4820-01-231-2697 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-231-2697 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-231-2697. Primary manufacturer part number: S-111 1/2IN.
Features
  • Valve,gate — FSC 4820
  • Bonnet Attachment Method: THREADED
  • Connection Type: SOCKET, WELD, PIPE
  • Valve Operation Method: MANUAL
  • Valve Size: 0.500 INCHES IN
  • Material: COPPER ALLOY STEM
  • Nominal Pipe Size Accommodated: 0.250 INCHES IN
  • Bonnet Type: INSIDE SCREW
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Stem construction
General Description

The Valve,gate, cataloged under National Stock Number 4820-01-231-2697, 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 12 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-231-2697
Primary Part NumberS-111 1/2IN
Item NameValve,gate
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNibco Inc
StatusCANCELLED
Bonnet Attachment MethodTHREADED
Connection TypeSOCKET, WELD, PIPE
Valve Operation MethodMANUAL
Valve Size0.500 INCHES IN
MaterialCOPPER ALLOY STEM
Nominal Pipe Size Accommodated0.250 INCHES IN
Bonnet TypeINSIDE SCREW
MaterialCOPPER ALLOY DISK
Inlet Relationship with OutletIDENTICAL
Stem TypeRISING
MaterialCOPPER ALLOY BODY
MaterialCOPPER ALLOY SEAT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4820-00-811-62271149-1-2 INTERCHANGEABLE
Valve,gate
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Cross-Reference Index
Part NumberManufacturer
S-111 1/2IN Nibco Inc (USA)
S111-1-2 Nibco Inc (USA)
Related Parts
4820-00-811-6227INTERCHANGEABLE
VALVE,GATE
1149-1-2

Frequently Asked Questions

What is NSN 4820-01-231-2697?

NSN 4820-01-231-2697 is a Valve,gate, manufactured by Nibco Inc, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-231-2697?

NSN 4820-01-231-2697 has 2 cross-referenced part numbers: S-111 1/2IN (Nibco Inc), S111-1-2 (Nibco Inc).

What NSN replaces 4820-01-231-2697?

There is 1 known substitute for 4820-01-231-2697: 4820-00-811-6227. Verify interchangeability with system specifications before substitution.

What are the specifications of S-111 1/2IN?

Key specifications for S-111 1/2IN: Bonnet Attachment Method: THREADED; Connection Type: SOCKET, WELD, PIPE; Valve Operation Method: MANUAL; Valve Size: 0.500 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-231-2697 still in active supply?

NSN 4820-01-231-2697 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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