PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

203021Nut,self-Locking,slotted,hexagon

Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems · NSN 5310-00-185-2151 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-185-2151 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-185-2151. Primary manufacturer part number: 203021.
Features
  • Nut,self-Locking,slotted,hexagon — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3B
  • Thread Quantity Per Inch: 24
  • Nominal Thread Size: 0.312 INCHES IN
  • Bearing Surface Type: WASHER FACED
  • Thread Series: UNF
  • Material: STEEL OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,self-Locking,slotted,hexagon, cataloged under National Stock Number 5310-00-185-2151, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems. 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-185-2151
Primary Part Number203021
Item NameNut,self-Locking,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
StatusACTIVE
Thread DirectionRIGHT-HAND
Thread Class3B
Thread Quantity Per Inch24
Nominal Thread Size0.312 INCHES IN
Bearing Surface TypeWASHER FACED
Thread SeriesUNF
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Width Across Flats0.500 INCHES NOMINAL IN
Nut Height0.344 INCHES NOMINAL IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Nut StyleSLOTTED, HEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5962-00-491-3827G190-010-004 INTERCHANGEABLE
Microcircuit,digital
Bae Systems Information and Electronic Systems Integration Inc.
5995-01-195-32924846-X-60 INTERCHANGEABLE
Cable Assembly,radio Frequency
Fluke Electronics Corp
6130-01-415-059020302-1 INTERCHANGEABLE
Power Supply
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
5920-01-539-7340203021 INTERCHANGEABLE
Fuse,cartridge
Dynarad
5340-01-596-5606203021 INTERCHANGEABLE
Strap,retaining
G R Mfg
5920-01-629-915620-3021 INTERCHANGEABLE
Fuseholder,block
Parker Hannifin Corporation Div Village Marine Tech
Cross-Reference Index
Part NumberManufacturer
203021 PRIMARY Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA)
Related Parts
5962-00-491-3827INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
G190-010-004
5995-01-195-3292INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
4846-X-60
6130-01-415-0590INTERCHANGEABLE
POWER SUPPLY
20302-1
5920-01-539-7340INTERCHANGEABLE
FUSE,CARTRIDGE
203021
5340-01-596-5606INTERCHANGEABLE
STRAP,RETAINING
203021
5920-01-629-9156INTERCHANGEABLE
FUSEHOLDER,BLOCK
20-3021

Frequently Asked Questions

What is NSN 5310-00-185-2151?

NSN 5310-00-185-2151 is a Nut,self-Locking,slotted,hexagon, manufactured by Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-185-2151?

NSN 5310-00-185-2151 has 1 cross-referenced part number: 203021 (Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems).

What NSN replaces 5310-00-185-2151?

There are 6 known substitutes for 5310-00-185-2151: 5962-00-491-3827, 5995-01-195-3292, 6130-01-415-0590 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 203021?

Key specifications for 203021: Thread Direction: RIGHT-HAND; Thread Class: 3B; Thread Quantity Per Inch: 24; Nominal Thread Size: 0.312 INCHES IN. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com