PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1683-B ITEM 12Nut,plain,hexagon

Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division · NSN 5310-01-423-0801 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-423-0801 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-423-0801. Primary manufacturer part number: 1683-B ITEM 12.
Features
  • Nut,plain,hexagon — FSC 5310
  • Material Document and Classification: ASTMB584 B143-2A ASSN STD SINGLE MATERIAL RESPONSE OVERALL A
  • Thread Class: 2B
  • Thread Series: UNF
  • Thread Quantity Per Inch: 20
  • Nominal Thread Size: 0.438 INCHES IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Material: COPPER ALLOY 922 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 922 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-423-0801, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5310-01-423-0801
Primary Part Number1683-B ITEM 12
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRomac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
StatusACTIVE
Material Document and ClassificationASTMB584 B143-2A ASSN STD SINGLE MATERIAL RESPONSE OVERALL A
Thread Class2B
Thread SeriesUNF
Thread Quantity Per Inch20
Nominal Thread Size0.438 INCHES IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
MaterialCOPPER ALLOY 922 OVERALL
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5120-00-493-77195457 INTERCHANGEABLE
Die,installing
Abb Installation Products Inc
5915-00-865-48845457 INTERCHANGEABLE
Filter,low Pass
Bird Electronic Corporation Div Bird Electronic Corp
1650-00-866-8147 INTERCHANGEABLE
Cylinder Block,hydraulic Motor-P
5331-00-895-7816123157-214 INTERCHANGEABLE
O-Ring
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4240-01-226-20825457 INTERCHANGEABLE
Hose,extension,res
E. D. Bullard Company Dba Ed Bullard Co
2920-01-252-85105457 INTERCHANGEABLE
Relay-Solenoid,engine Starter,el
Tvh Parts Co.
2530-01-613-45635457 INTERCHANGEABLE
Kingpin,wheel Spindle
Pdi Ground Support Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
1683-B ITEM 12 PRIMARY Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
5457 Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division (USA)
Related Parts
5120-00-493-7719INTERCHANGEABLE
DIE,INSTALLING
5457
5915-00-865-4884INTERCHANGEABLE
FILTER,LOW PASS
5457
1650-00-866-8147INTERCHANGEABLE
CYLINDER BLOCK,HYDRAULIC MOTOR-P
5331-00-895-7816INTERCHANGEABLE
O-RING
123157-214
4240-01-226-2082INTERCHANGEABLE
HOSE,EXTENSION,RES
5457
2920-01-252-8510INTERCHANGEABLE
RELAY-SOLENOID,ENGINE STARTER,EL
5457
2530-01-613-4563INTERCHANGEABLE
KINGPIN,WHEEL SPINDLE
5457

Frequently Asked Questions

What is NSN 5310-01-423-0801?

NSN 5310-01-423-0801 is a Nut,plain,hexagon, manufactured by Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-423-0801?

NSN 5310-01-423-0801 has 2 cross-referenced part numbers: 1683-B ITEM 12 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division), 5457 (Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division).

What NSN replaces 5310-01-423-0801?

There are 7 known substitutes for 5310-01-423-0801: 5120-00-493-7719, 5915-00-865-4884, 1650-00-866-8147 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1683-B ITEM 12?

Key specifications for 1683-B ITEM 12: Material Document and Classification: ASTMB584 B143-2A ASSN STD SINGLE MATERIAL RESPONSE OVERALL A; Thread Class: 2B; Thread Series: UNF; Thread Quantity Per Inch: 20. 9 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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