PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6731-1PAdapter,valve,inlet and Outlet

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 4820-01-065-1991 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-065-1991 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-065-1991. Primary manufacturer part number: 6731-1P.
Features
  • Adapter,valve,inlet and Outlet — FSC 4820
  • 4 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
General Description

The Adapter,valve,inlet and Outlet, cataloged under National Stock Number 4820-01-065-1991, 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. This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,valve,inlet and Outlet
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (CAGE 90800)
Technical Specifications
ParameterValue
NSN4820-01-065-1991
Primary Part Number6731-1P
Item NameAdapter,valve,inlet and Outlet
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-196-1467A733S-73CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
9540-00-232-0810 INTERCHANGEABLE
Beam,structural
5961-00-824-3703673-11 INTERCHANGEABLE
Rectifier,semiconductor Device,u
Micro Uspd Inc
6640-01-546-809567311 INTERCHANGEABLE
Ring,laboratory Centrifuge
Petroleum Analyzer Co L.p
7125-01-720-990867311 INTERCHANGEABLE
Shelf,storage and Display
Lyon Llc
Cross-Reference Index
Part NumberManufacturer
7093-C3 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
6731-1 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
6731-1P PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
7093-C3ITEM 1 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
4730-00-196-1467INTERCHANGEABLE
NIPPLE,PIPE
A733S-73CFG
9540-00-232-0810INTERCHANGEABLE
BEAM,STRUCTURAL
5961-00-824-3703INTERCHANGEABLE
RECTIFIER,SEMICONDUCTOR DEVICE,U
673-11
6640-01-546-8095INTERCHANGEABLE
RING,LABORATORY CENTRIFUGE
67311
7125-01-720-9908INTERCHANGEABLE
SHELF,STORAGE AND DISPLAY
67311

Frequently Asked Questions

What is NSN 4820-01-065-1991?

NSN 4820-01-065-1991 is a Adapter,valve,inlet and Outlet, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-065-1991?

NSN 4820-01-065-1991 has 4 cross-referenced part numbers: 7093-C3 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 6731-1 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 6731-1P (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 7093-C3ITEM 1 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division).

What NSN replaces 4820-01-065-1991?

There are 5 known substitutes for 4820-01-065-1991: 4730-00-196-1467, 9540-00-232-0810, 5961-00-824-3703 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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