PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203-1005P21Nut,plain,hexagon

Raytheon Company Dba Raytheon · NSN 5310-00-275-6571 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-6571 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-6571. Primary manufacturer part number: 203-1005P21.
Features
  • Nut,plain,hexagon — FSC 5310
  • Thread Class: 2B
  • Thread Series: UNF
  • Nominal Thread Size: 0.190 INCHES IN
  • Thread Quantity Per Inch: 32
  • Bearing Surface Type: CHAMFERED
  • Nut Height: 0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
  • Width Across Flats: 0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-275-6571, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-275-6571
Primary Part Number203-1005P21
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
Thread Class2B
Thread SeriesUNF
Nominal Thread Size0.190 INCHES IN
Thread Quantity Per Inch32
Bearing Surface TypeCHAMFERED
Nut Height0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
Width Across Flats0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Nut StyleHEXAGON
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-934-9765MS35650-304 INTERCHANGEABLE
Nut,plain,hexagon
Joint Electronics Type Designation System
Cross-Reference Index
Part NumberManufacturer
203-1005P21 Raytheon Company Div Corp (USA)
203-1005P21 Raytheon Company Dba Raytheon Co (USA)
203-1005P21 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
5310-00-934-9765INTERCHANGEABLE
NUT,PLAIN,HEXAGON
MS35650-304

Frequently Asked Questions

What is NSN 5310-00-275-6571?

NSN 5310-00-275-6571 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 5310-00-275-6571?

NSN 5310-00-275-6571 has 3 cross-referenced part numbers: 203-1005P21 (Raytheon Company Div Corp), 203-1005P21 (Raytheon Company Dba Raytheon Co), 203-1005P21 (Raytheon Company Dba Raytheon).

What NSN replaces 5310-00-275-6571?

There is 1 known substitute for 5310-00-275-6571: 5310-00-934-9765. Verify interchangeability with system specifications before substitution.

What are the specifications of 203-1005P21?

Key specifications for 203-1005P21: Thread Class: 2B; Thread Series: UNF; Nominal Thread Size: 0.190 INCHES IN; Thread Quantity Per Inch: 32. 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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