PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6634Disk,valve

Lawler Manufacturing Company, Inc. · NSN 4820-00-606-0111 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-606-0111 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-606-0111. Primary manufacturer part number: 6634.
Features
  • Disk,valve — FSC 4820
  • Media for Which Designed: WATER
  • Outside Diameter: 4.875 INCHES NOMINAL IN
  • Inside Diameter: 3.156 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
  • Style Designator: PLAIN
  • 3 verified cross-references
  • Primary manufacturer: Lawler Manufacturing Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-00-606-0111, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lawler Manufacturing Company, Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-606-0111
Primary Part Number6634
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Media for Which DesignedWATER
Outside Diameter4.875 INCHES NOMINAL IN
Inside Diameter3.156 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3930-00-146-0658 INTERCHANGEABLE
Pad,bearing
4130-00-456-5849 INTERCHANGEABLE
Strainer,drain
4820-01-176-60506634 PC14 INTERCHANGEABLE
Retainer,side
Greno Industries, Inc. Dba Greno Industries Inc
5136-01-431-20136634 INTERCHANGEABLE
Die,thread Cutting
Stanley Tools Div of Stanley Works
6515-01-561-66129799 INTERCHANGEABLE
Holder,surgical Tube,utility
Hollister Inc
6150-01-569-05941531970 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Oshkosh Defense Llc
5330-01-624-15656634 INTERCHANGEABLE
Gasket
Teledyne Flir Unmanned Ground Systems, Inc
Cross-Reference Index
Part NumberManufacturer
6634 PRIMARY Lawler Manufacturing Company, Inc. (USA)
71999PC26 Lawler Manufacturing Company, Inc. (USA)
6634L PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
3930-00-146-0658INTERCHANGEABLE
PAD,BEARING
4130-00-456-5849INTERCHANGEABLE
STRAINER,DRAIN
4820-01-176-6050INTERCHANGEABLE
RETAINER,SIDE
6634 PC14
5136-01-431-2013INTERCHANGEABLE
DIE,THREAD CUTTING
6634
6515-01-561-6612INTERCHANGEABLE
HOLDER,SURGICAL TUBE,UTILITY
9799
6150-01-569-0594INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
1531970
5330-01-624-1565INTERCHANGEABLE
GASKET
6634

Frequently Asked Questions

What is NSN 4820-00-606-0111?

NSN 4820-00-606-0111 is a Disk,valve, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-606-0111?

NSN 4820-00-606-0111 has 3 cross-referenced part numbers: 6634 (Lawler Manufacturing Company, Inc.), 71999PC26 (Lawler Manufacturing Company, Inc.), 6634L (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-00-606-0111?

There are 7 known substitutes for 4820-00-606-0111: 3930-00-146-0658, 4130-00-456-5849, 4820-01-176-6050 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6634?

Key specifications for 6634: Overall Height: 0.594 INCHES NOMINAL IN; Media for Which Designed: WATER; Outside Diameter: 4.875 INCHES NOMINAL IN; Inside Diameter: 3.156 INCHES NOMINAL IN. 6 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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