PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

712-00Diaphragm,valve,flat

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-156-8394 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-156-8394 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-156-8394. Primary manufacturer part number: 712-00.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Bolt Hole Quantity: 8
  • Outside Diameter: 8.029 INCHES NOMINAL IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • Bolt Circle Diameter: 7.155 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Center Hole Diameter: 0.750 INCHES NOMINAL IN
  • Hole Diameter: 0.500 INCHES NOMINAL IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-156-8394, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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
NSN4820-01-156-8394
Primary Part Number712-00
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
Bolt Hole Quantity8
Outside Diameter8.029 INCHES NOMINAL IN
MaterialRUBBER CHLOROPRENE CLASS CR
Bolt Circle Diameter7.155 INCHES NOMINAL IN
Style DesignatorFLAT
Center Hole Diameter0.750 INCHES NOMINAL IN
Hole Diameter0.500 INCHES NOMINAL IN
Material Thickness0.136 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5130-00-096-667772-200 INTERCHANGEABLE
Valve Lifter,pneumatic
Stride Tool Inc
6530-00-488-790240404 INTERCHANGEABLE
Restraint,wrist and Ankle
Vehicles Inc
5940-00-682-9416304-0332-00 INTERCHANGEABLE
Terminal,lug
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
1730-00-685-0125712 INTERCHANGEABLE
Jack,hydraulic,tripod
Malabar
5950-00-724-4210666231-043 INTERCHANGEABLE
Transformer,radio Frequency
Stromberg-Carlson Corp a Plessey Telecommunications Co
6680-01-081-780040404 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
6530-01-533-5815 INTERCHANGEABLE
Pad,knee Crutch
5120-01-604-48954040-4 INTERCHANGEABLE
Step Plate,mechanical Puller
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5995-01-713-575940404 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Msab Incorporated Dba Msab Inc
Cross-Reference Index
Part NumberManufacturer
40404-01 PIECE 16 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
712 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40404 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
712-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
5130-00-096-6677INTERCHANGEABLE
VALVE LIFTER,PNEUMATIC
72-200
6530-00-488-7902INTERCHANGEABLE
RESTRAINT,WRIST AND ANKLE
40404
5940-00-682-9416INTERCHANGEABLE
TERMINAL,LUG
304-0332-00
1730-00-685-0125INTERCHANGEABLE
JACK,HYDRAULIC,TRIPOD
712
5950-00-724-4210INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
666231-043
6680-01-081-7800INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
40404
6530-01-533-5815INTERCHANGEABLE
PAD,KNEE CRUTCH
5120-01-604-4895INTERCHANGEABLE
STEP PLATE,MECHANICAL PULLER
4040-4
5995-01-713-5759INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
40404

Frequently Asked Questions

What is NSN 4820-01-156-8394?

NSN 4820-01-156-8394 is a Diaphragm,valve,flat, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-156-8394?

NSN 4820-01-156-8394 has 4 cross-referenced part numbers: 40404-01 PIECE 16 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 712 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40404 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 712-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-156-8394?

There are 9 known substitutes for 4820-01-156-8394: 5130-00-096-6677, 6530-00-488-7902, 5940-00-682-9416 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 712-00?

Key specifications for 712-00: Bolt Hole Quantity: 8; Outside Diameter: 8.029 INCHES NOMINAL IN; Material: RUBBER CHLOROPRENE CLASS CR; Bolt Circle Diameter: 7.155 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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