PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51645Nut,plain,round

Numax Electronics Inc · NSN 5310-00-208-7027 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-7027 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-7027. Primary manufacturer part number: 51645.
Features
  • Nut,plain,round — FSC 5310
  • Thread Class: 2B
  • Thread Quantity Per Inch: 72
  • Nominal Thread Size: 0.073 INCHES IN
  • Thread Series: UNF
  • Nut Diameter: 0.218 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Nut Thickness: 0.171 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-208-7027, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Numax Electronics Inc. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-208-7027
Primary Part Number51645
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNumax Electronics Inc
StatusACTIVE
Thread Class2B
Thread Quantity Per Inch72
Nominal Thread Size0.073 INCHES IN
Thread SeriesUNF
Nut Diameter0.218 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
Nut Thickness0.171 INCHES NOMINAL IN
Nut StyleROUND
MaterialSTEEL COMP 303 OVERALL
Thread DirectionRIGHT-HAND
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5360-00-598-4986SCB69326-29 INTERCHANGEABLE
Spring,helical,extension
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5365-00-736-10175164-5 INTERCHANGEABLE
Spacer,sleeve
Goodrich Aerospace Canada Ltd
5940-01-046-534010-107-3 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
7510-01-490-201151645 INTERCHANGEABLE
Ink,cartridge
Hewlett-Packard Company Dba HP
Cross-Reference Index
Part NumberManufacturer
51645 Numax Electronics Inc (USA)
Related Parts
5360-00-598-4986INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
SCB69326-29
5365-00-736-1017INTERCHANGEABLE
SPACER,SLEEVE
5164-5
5940-01-046-5340INTERCHANGEABLE
TERMINAL,STUD
10-107-3
7510-01-490-2011INTERCHANGEABLE
INK,CARTRIDGE
51645

Frequently Asked Questions

What is NSN 5310-00-208-7027?

NSN 5310-00-208-7027 is a Nut,plain,round, manufactured by Numax Electronics Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-208-7027?

NSN 5310-00-208-7027 has 1 cross-referenced part number: 51645 (Numax Electronics Inc).

What NSN replaces 5310-00-208-7027?

There are 4 known substitutes for 5310-00-208-7027: 5360-00-598-4986, 5365-00-736-1017, 5940-01-046-5340 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51645?

Key specifications for 51645: Thread Class: 2B; Thread Quantity Per Inch: 72; Special Features: ONE END REDUCED DIA 0.134 IN. DIA BY 0.080 LONG IN; Nominal Thread Size: 0.073 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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