PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21210Nut,plain,hexagon

Dresser, Llc · NSN 5310-00-208-5211 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-5211 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-5211. Primary manufacturer part number: 21210.
Features
  • Nut,plain,hexagon — FSC 5310
  • Bearing Surface Type: WASHER FACED
  • Thread Series: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.250 INCHES IN
  • Thread Quantity Per Inch: 20
  • Nut Height: 0.438 INCHES NOMINAL IN
  • Nut Style: HEXAGON
  • Surface Treatment: CADMIUM OVERALL
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 5310-00-208-5211, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser, Llc. Government technical data includes 11 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-208-5211
Primary Part Number21210
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser, Llc
StatusACTIVE
Bearing Surface TypeWASHER FACED
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.250 INCHES IN
Thread Quantity Per Inch20
Nut Height0.438 INCHES NOMINAL IN
Nut StyleHEXAGON
Surface TreatmentCADMIUM OVERALL
Width Across Flats0.750 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Thread Class3B
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-043-2978584536 INTERCHANGEABLE
Backshell,electrical Connector
Herley Chicago Dba Stewart Warner Electronics
3110-00-100-6170MS19059-2430 INTERCHANGEABLE
Ball,bearing
American Society for Testing and Materials Dba Astm International
5365-00-119-707853300-17 INTERCHANGEABLE
Spacer,plate
Hamilton Sundstrand Corporation Dba Collins Aerospace
3040-00-168-090421210 INTERCHANGEABLE
Plate,retaining,shaft
Industrial Technologies and Services Llc
5935-00-233-6619247ASC1635-001 INTERCHANGEABLE
Adapter,connector
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5915-00-387-22685300 INTERCHANGEABLE
Network,pulse Forming
Naval Ship Systems Command
2530-00-426-9845 INTERCHANGEABLE
Rod,radius
5930-00-498-6995212-10 INTERCHANGEABLE
Switch,rotary
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
2805-00-528-625853-300 INTERCHANGEABLE
Valve,poppet,engine
Brp Us Inc
5330-00-752-90320203207 INTERCHANGEABLE
Seal,plain Encased
Titan Wheel Corporation of Illinois
Cross-Reference Index
Part NumberManufacturer
53-300 Dresser, Llc (USA)
21210 PRIMARY Dresser, Llc (USA)
Related Parts
5935-00-043-2978INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
584536
3110-00-100-6170INTERCHANGEABLE
BALL,BEARING
MS19059-2430
5365-00-119-7078INTERCHANGEABLE
SPACER,PLATE
53300-17
3040-00-168-0904INTERCHANGEABLE
PLATE,RETAINING,SHAFT
21210
5935-00-233-6619INTERCHANGEABLE
ADAPTER,CONNECTOR
247ASC1635-001
5915-00-387-2268INTERCHANGEABLE
NETWORK,PULSE FORMING
5300
2530-00-426-9845INTERCHANGEABLE
ROD,RADIUS
5930-00-498-6995INTERCHANGEABLE
SWITCH,ROTARY
212-10
2805-00-528-6258INTERCHANGEABLE
VALVE,POPPET,ENGINE
53-300
5330-00-752-9032INTERCHANGEABLE
SEAL,PLAIN ENCASED
0203207
5120-00-888-5831INTERCHANGEABLE
BIT,SCREWDRIVER
100-XT10
4820-00-983-5570INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE

Frequently Asked Questions

What is NSN 5310-00-208-5211?

NSN 5310-00-208-5211 is a Nut,plain,hexagon, manufactured by Dresser, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-208-5211?

NSN 5310-00-208-5211 has 2 cross-referenced part numbers: 53-300 (Dresser, Llc), 21210 (Dresser, Llc).

What NSN replaces 5310-00-208-5211?

There are 12 known substitutes for 5310-00-208-5211: 5935-00-043-2978, 3110-00-100-6170, 5365-00-119-7078 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21210?

Key specifications for 21210: Bearing Surface Type: WASHER FACED; Thread Series: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Size: 0.250 INCHES IN; Thread Quantity Per Inch: 20. 11 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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