PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12173Nut,plain,hexagon

Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems · NSN 5310-00-786-4000 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-786-4000 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-786-4000. Primary manufacturer part number: 12173.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.190 INCHES IN
  • Thread Quantity Per Inch: 32
  • Thread Series: UNF
  • Bearing Surface Type: CHAMFERED
  • Material: STEEL OVERALL
  • Nut Height: 0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-786-4000, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN5310-00-786-4000
Primary Part Number12173
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerStanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
StatusACTIVE
Nut StyleHEXAGON
Nominal Thread Size0.190 INCHES IN
Thread Quantity Per Inch32
Thread SeriesUNF
Bearing Surface TypeCHAMFERED
MaterialSTEEL OVERALL
Nut Height0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Width Across Flats0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Material Document and ClassificationASTM A307 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentCADMIUM OVERALL
Thread Class2B
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3040-00-096-554312173 INTERCHANGEABLE
Shaft,shouldered
Mid-America Aerotech, Llc
5133-00-189-9318 INTERCHANGEABLE
Drill,twist
5330-00-215-7208 INTERCHANGEABLE
Gasket
2910-00-706-74498H9752 INTERCHANGEABLE
Carburetor,float
Caterpillar Inc Div Caterpillar Defense
5935-01-096-6202 INTERCHANGEABLE
Adapter,connector
5996-01-475-4694927430-0016 INTERCHANGEABLE
Amplifier,direct Current
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
6515-01-576-56789790 INTERCHANGEABLE
Sleeve,wrap-Around,pneumatic
Covidien Healthcare Div Medical
Cross-Reference Index
Part NumberManufacturer
12173 PRIMARY Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
643 Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems (USA)
3300A77A0320P006 General Electric Company (USA)
3300A77A0320P006 PRIMARY General Electric Co Motor Business Group (USA)
Related Parts
3040-00-096-5543INTERCHANGEABLE
SHAFT,SHOULDERED
12173
5133-00-189-9318INTERCHANGEABLE
DRILL,TWIST
5330-00-215-7208INTERCHANGEABLE
GASKET
2910-00-706-7449INTERCHANGEABLE
CARBURETOR,FLOAT
8H9752
5935-01-096-6202INTERCHANGEABLE
ADAPTER,CONNECTOR
5996-01-475-4694INTERCHANGEABLE
AMPLIFIER,DIRECT CURRENT
927430-0016
6515-01-576-5678INTERCHANGEABLE
SLEEVE,WRAP-AROUND,PNEUMATIC
9790

Frequently Asked Questions

What is NSN 5310-00-786-4000?

NSN 5310-00-786-4000 is a Nut,plain,hexagon, manufactured by Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-786-4000?

NSN 5310-00-786-4000 has 4 cross-referenced part numbers: 12173 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 643 (Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems), 3300A77A0320P006 (General Electric Company), 3300A77A0320P006 (General Electric Co Motor Business Group).

What NSN replaces 5310-00-786-4000?

There are 7 known substitutes for 5310-00-786-4000: 3040-00-096-5543, 5133-00-189-9318, 5330-00-215-7208 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12173?

Key specifications for 12173: Nut Style: HEXAGON; Nominal Thread Size: 0.190 INCHES IN; Thread Quantity Per Inch: 32; Thread Series: UNF. 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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