PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3514Diaphragm,valve,flat

Lawler Manufacturing Company, Inc. · NSN 4820-00-885-3077 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-885-3077 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-885-3077. Primary manufacturer part number: 3514.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Outside Diameter: 13.000 INCHES NOMINAL IN
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • Bolt Hole Quantity: 12
  • Center Hole Diameter: 0.750 INCHES NOMINAL IN
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Bolt Circle Diameter: 12.125 INCHES NOMINAL IN
  • Material: RUBBER FABRIC REINFORCED
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Fabric Reinforced construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-885-3077, 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 8 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-885-3077
Primary Part Number3514
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLawler Manufacturing Company, Inc.
StatusACTIVE
Outside Diameter13.000 INCHES NOMINAL IN
Material Thickness0.062 INCHES NOMINAL IN
Bolt Hole Quantity12
Center Hole Diameter0.750 INCHES NOMINAL IN
Hole Diameter0.375 INCHES NOMINAL IN
Bolt Circle Diameter12.125 INCHES NOMINAL IN
MaterialRUBBER FABRIC REINFORCED
Style DesignatorFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
6740-00-431-9655 INTERCHANGEABLE
Hanger,photographic Film
3020-00-779-63363514 INTERCHANGEABLE
Gear,helical
Cummins Inc.
5975-00-959-16805334 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
6505-01-117-9832 INTERCHANGEABLE
Isoflurane
2510-01-161-6584MA132-21012 INTERCHANGEABLE
Guard,lock,fifth Wheel Assembly
Am General Llc
4730-01-267-0097 INTERCHANGEABLE
Strainer,sediment
4820-01-367-15663514 INTERCHANGEABLE
Valve,regulating,fluid Pressure
DP Manufacturing Inc.
5120-01-430-7670 INTERCHANGEABLE
Socket,socket Wrench
5998-01-449-13253514 INTERCHANGEABLE
Circuit Card Assembly
Allen Sales and Services Ltd
Cross-Reference Index
Part NumberManufacturer
3514 Lawler Manufacturing Company, Inc. (USA)
3514-L Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
6740-00-431-9655INTERCHANGEABLE
HANGER,PHOTOGRAPHIC FILM
3020-00-779-6336INTERCHANGEABLE
GEAR,HELICAL
3514
5975-00-959-1680INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5334
6505-01-117-9832INTERCHANGEABLE
ISOFLURANE
2510-01-161-6584INTERCHANGEABLE
GUARD,LOCK,FIFTH WHEEL ASSEMBLY
MA132-21012
4730-01-267-0097INTERCHANGEABLE
STRAINER,SEDIMENT
4820-01-367-1566INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
3514
5120-01-430-7670INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5998-01-449-1325INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3514

Frequently Asked Questions

What is NSN 4820-00-885-3077?

NSN 4820-00-885-3077 is a Diaphragm,valve,flat, manufactured by Lawler Manufacturing Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-885-3077?

NSN 4820-00-885-3077 has 2 cross-referenced part numbers: 3514 (Lawler Manufacturing Company, Inc.), 3514-L (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-00-885-3077?

There are 9 known substitutes for 4820-00-885-3077: 6740-00-431-9655, 3020-00-779-6336, 5975-00-959-1680 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3514?

Key specifications for 3514: Outside Diameter: 13.000 INCHES NOMINAL IN; Material Thickness: 0.062 INCHES NOMINAL IN; Bolt Hole Quantity: 12; Center Hole Diameter: 0.750 INCHES NOMINAL IN. 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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