PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

19903Nut,plain,extended Washer,hexago

Jergens Inc Div Tooling Components Division · NSN 5310-01-071-6273 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-071-6273 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-071-6273. Primary manufacturer part number: 19903.
Features
  • Nut,plain,extended Washer,hexago — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Washer Outside Diameter: 0.750 INCHES NOMINAL IN
  • Width Across Flats: 0.562 INCHES NOMINAL IN
  • Nominal Thread Size: 0.312 INCHES IN
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Surface Treatment: OXIDE OVERALL
  • Thread Quantity Per Inch: 18
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-071-6273, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Jergens Inc Div Tooling Components Division. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-071-6273
Primary Part Number19903
Item NameNut,plain,extended Washer,hexago
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerJergens Inc Div Tooling Components Division
StatusACTIVE
Thread DirectionRIGHT-HAND
Washer Outside Diameter0.750 INCHES NOMINAL IN
Width Across Flats0.562 INCHES NOMINAL IN
Nominal Thread Size0.312 INCHES IN
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentOXIDE OVERALL
Thread Quantity Per Inch18
MaterialSTEEL OVERALL
Nut StyleHEXAGON
Washer Thickness0.062 INCHES NOMINAL IN
Thread Class2B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-00-241-6916680702 INTERCHANGEABLE
Ring,quadrant
Eaton Aerospace, Llc Dba Jackson South
9540-00-541-7431 INTERCHANGEABLE
Beam,structural
5935-01-068-9401ST5M1333-001 INTERCHANGEABLE
Connector,plug,electrical
The Boeing Company Div Defense
4730-01-118-1158AR86745 INTERCHANGEABLE
Strainer Element,sediment
Deere & Co
5130-01-533-899219903 INTERCHANGEABLE
Mandrel,riveter,blind
Gage Bilt, Inc.
5306-01-595-581319903 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
19903 PRIMARY Jergens Inc Div Tooling Components Division (USA)
Related Parts
5365-00-241-6916INTERCHANGEABLE
RING,QUADRANT
680702
9540-00-541-7431INTERCHANGEABLE
BEAM,STRUCTURAL
5935-01-068-9401INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
ST5M1333-001
4730-01-118-1158INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
AR86745
5130-01-533-8992INTERCHANGEABLE
MANDREL,RIVETER,BLIND
19903
5306-01-595-5813INTERCHANGEABLE
BOLT,MACHINE
19903

Frequently Asked Questions

What is NSN 5310-01-071-6273?

NSN 5310-01-071-6273 is a Nut,plain,extended Washer,hexago, manufactured by Jergens Inc Div Tooling Components Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-071-6273?

NSN 5310-01-071-6273 has 1 cross-referenced part number: 19903 (Jergens Inc Div Tooling Components Division).

What NSN replaces 5310-01-071-6273?

There are 6 known substitutes for 5310-01-071-6273: 5365-00-241-6916, 9540-00-541-7431, 5935-01-068-9401 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 19903?

Key specifications for 19903: Thread Direction: RIGHT-HAND; Washer Outside Diameter: 0.750 INCHES NOMINAL IN; Width Across Flats: 0.562 INCHES NOMINAL IN; Nominal Thread Size: 0.312 INCHES IN. 12 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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