PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22M50Nut,self-Locking,hexagon

Esna, Llc · NSN 5310-00-596-6870 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-596-6870 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-596-6870. Primary manufacturer part number: 22M50.
Features
  • Nut,self-Locking,hexagon — FSC 5310
  • Thread Class: 3B
  • Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
  • Bearing Surface Type: CHAMFERED
  • Nominal Thread Size: 0.125 INCHES IN
  • Nut Style: HEXAGON
  • Width Across Flats: 0.240 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
  • Nut Height: 0.143 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Locking Insert construction
General Description

The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-596-6870, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Esna, Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-596-6870
Primary Part Number22M50
Item NameNut,self-Locking,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEsna, Llc
StatusCANCELLED
Thread Class3B
Locking FeaturePREVAILING TORQUE WITH NONMETALLIC INSERT
Bearing Surface TypeCHAMFERED
Nominal Thread Size0.125 INCHES IN
Nut StyleHEXAGON
Width Across Flats0.240 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
Nut Height0.143 INCHES NOMINAL IN
MaterialPLASTIC LOCKING INSERT
MaterialSTEEL NUT
Thread SeriesUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Temp Rating250.0 FAHRENHEIT NOMINAL DEGF
Surface TreatmentCADMIUM NUT
Thread Quantity Per Inch40
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5935-00-013-9490103372 INTERCHANGEABLE
Connector,receptacle,electrical
Astronautics Corporation of America
5310-00-545-4617 INTERCHANGEABLE
Nut,self Locking
5315-00-839-2326MS24665-281 INTERCHANGEABLE
Pin,cotter
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5365-01-218-1304103372 INTERCHANGEABLE
Spacer,sleeve
Air Systems Components Inc Dba Air System Components Inc Div Trion Iaq Div
Cross-Reference Index
Part NumberManufacturer
22M50 Harvard Industries Inc (USA)
364868 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
TS488 Aerocontrolex Group, Inc. Div Talley Actuators (USA)
21C1534-043 General Electric Company (USA)
103372 Lexmark International, Inc. Dba Lexmark (USA)
22NM50 Harvard Industries Inc (USA)
PS1208-17 Emerson Electric Co Alco Controls Div (USA)
22M50 PRIMARY Esna, Llc (USA)
Related Parts
5935-00-013-9490INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
103372
5310-00-545-4617INTERCHANGEABLE
NUT,SELF LOCKING
5315-00-839-2326INTERCHANGEABLE
PIN,COTTER
MS24665-281
5365-01-218-1304INTERCHANGEABLE
SPACER,SLEEVE
103372

Frequently Asked Questions

What is NSN 5310-00-596-6870?

NSN 5310-00-596-6870 is a Nut,self-Locking,hexagon, manufactured by Esna, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-596-6870?

NSN 5310-00-596-6870 has 8 cross-referenced part numbers: 22M50 (Harvard Industries Inc), 364868 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), TS488 (Aerocontrolex Group, Inc. Div Talley Actuators), 21C1534-043 (General Electric Company), 103372 (Lexmark International, Inc. Dba Lexmark) and 3 more.

What NSN replaces 5310-00-596-6870?

There are 4 known substitutes for 5310-00-596-6870: 5935-00-013-9490, 5310-00-545-4617, 5315-00-839-2326 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22M50?

Key specifications for 22M50: Thread Class: 3B; Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT; Bearing Surface Type: CHAMFERED; Nominal Thread Size: 0.125 INCHES IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-596-6870 still in active supply?

NSN 5310-00-596-6870 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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