PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28868Nut,plain,hexagon

Raytheon Company Dba Raytheon · NSN 5310-00-721-3451 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-721-3451 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-721-3451. Primary manufacturer part number: 28868.
Features
  • Nut,plain,hexagon — FSC 5310
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1212 OVERALL
  • Nut Style: HEXAGON
  • Thread Class: 2B
  • Nominal Thread Size: 0.438 INCHES IN
  • Thread Series: UNF
  • Bearing Surface Type: WASHER FACED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1212 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-721-3451, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 12 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-721-3451
Primary Part Number28868
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1212 OVERALL
Nut StyleHEXAGON
Thread Class2B
Nominal Thread Size0.438 INCHES IN
Thread SeriesUNF
Bearing Surface TypeWASHER FACED
Thread Quantity Per Inch20
Width Across Flats0.614 INCHES MINIMUM AND 0.627 INCHES MAXIMUM IN
Nut Height0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Surface TreatmentCADMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1650-00-356-117628868 INTERCHANGEABLE
Coil,directional Control
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
4210-00-573-9232CS4210-SR-0700 INTERCHANGEABLE
Carriage Assembly,compressor
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)
5330-00-969-206528-868 INTERCHANGEABLE
Gasket
Johnson Controls Navy Systems, Llc
Cross-Reference Index
Part NumberManufacturer
28868 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
1650-00-356-1176INTERCHANGEABLE
COIL,DIRECTIONAL CONTROL
28868
4210-00-573-9232INTERCHANGEABLE
CARRIAGE ASSEMBLY,COMPRESSOR
CS4210-SR-0700
5330-00-969-2065INTERCHANGEABLE
GASKET
28-868

Frequently Asked Questions

What is NSN 5310-00-721-3451?

NSN 5310-00-721-3451 is a Nut,plain,hexagon, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-721-3451?

NSN 5310-00-721-3451 has 1 cross-referenced part number: 28868 (Raytheon Company Dba Raytheon).

What NSN replaces 5310-00-721-3451?

There are 3 known substitutes for 5310-00-721-3451: 1650-00-356-1176, 4210-00-573-9232, 5330-00-969-2065. Verify interchangeability with system specifications before substitution.

What are the specifications of 28868?

Key specifications for 28868: Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 1212 OVERALL; Nut Style: HEXAGON; Thread Class: 2B. 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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