PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5711Disk,valve

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 4820-01-114-6434 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-114-6434 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-114-6434. Primary manufacturer part number: 5711.
Features
  • Disk,valve — FSC 4820
  • Material: RUBBER
  • Style Designator: SOLID
  • Outside Diameter: 0.825 INCHES NOMINAL IN
  • 12 verified cross-references
  • Primary manufacturer: Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-114-6434, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-114-6434
Primary Part Number5711
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusCANCELLED
MaterialRUBBER
Style DesignatorSOLID
Outside Diameter0.825 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-168-5693 INTERCHANGEABLE
Gasket
4730-00-187-7570 INTERCHANGEABLE
Coupling,pipe
8345-00-242-0270 INTERCHANGEABLE
Flag,individual
8345-00-242-0271 INTERCHANGEABLE
Flag,individual
8345-00-242-0272 INTERCHANGEABLE
Flag,individual
5330-00-297-4457YB287-1020SUB7PT20 INTERCHANGEABLE
Seal,plain
Raytheon Company Div Corp
3020-00-428-61915711 INTERCHANGEABLE
Gear,spur
Cummins Inc.
5330-00-695-117017675 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
6635-00-735-2813 INTERCHANGEABLE
Xray Laboratory Portable
1620-00-756-91715711 INTERCHANGEABLE
Retainer,seal Shortening
Goodrich Aerospace Canada Ltd
Cross-Reference Index
Part NumberManufacturer
5711 PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
85711 PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
2765-C ITEM 15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
7511 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
8831-B ITEM 15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
1691-B ITEM 15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
7083-C ITEM 10 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
5611PC Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
1683-B12 ITEM-15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
1683-B ITEM 15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
2764-C ITEM 15 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
5711PC Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
5330-00-168-5693INTERCHANGEABLE
GASKET
4730-00-187-7570INTERCHANGEABLE
COUPLING,PIPE
8345-00-242-0270INTERCHANGEABLE
FLAG,INDIVIDUAL
8345-00-242-0271INTERCHANGEABLE
FLAG,INDIVIDUAL
8345-00-242-0272INTERCHANGEABLE
FLAG,INDIVIDUAL
5330-00-297-4457INTERCHANGEABLE
SEAL,PLAIN
YB287-1020SUB7PT20
3020-00-428-6191INTERCHANGEABLE
GEAR,SPUR
5711
5330-00-695-1170INTERCHANGEABLE
SEAL,PLAIN ENCASED
17675
6635-00-735-2813INTERCHANGEABLE
XRAY LABORATORY PORTABLE
1620-00-756-9171INTERCHANGEABLE
RETAINER,SEAL SHORTENING
5711
3770-00-951-6418INTERCHANGEABLE
COLLAR,DOG
57-11
5820-01-145-9031INTERCHANGEABLE
TUNER,RADIO FREQUENCY
57-1-1

Frequently Asked Questions

What is NSN 4820-01-114-6434?

NSN 4820-01-114-6434 is a Disk,valve, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-114-6434?

NSN 4820-01-114-6434 has 12 cross-referenced part numbers: 5711 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 85711 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 2765-C ITEM 15 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 7511 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 8831-B ITEM 15 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division) and 7 more.

What NSN replaces 4820-01-114-6434?

There are 12 known substitutes for 4820-01-114-6434: 5330-00-168-5693, 4730-00-187-7570, 8345-00-242-0270 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5711?

Key specifications for 5711: Material: RUBBER; Style Designator: SOLID; Overall Height: 0.800 INCHES NOMINAL IN; Outside Diameter: 0.825 INCHES NOMINAL IN. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-114-6434 still in active supply?

NSN 4820-01-114-6434 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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