PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

218510Nut,plain,slotted,hexagon

General Motors Corp · NSN 5310-00-813-1203 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-813-1203 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-813-1203. Primary manufacturer part number: 218510.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Hardness Rating: 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
  • Thread Series: UNF
  • Thread Quantity Per Inch: 20
  • Nominal Thread Size: 0.500 INCHES IN
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 4 TYPE AND 16 STYLE AND B GRADE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-813-1203, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-813-1203
Primary Part Number218510
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusCANCELLED
Bearing Surface TypeCHAMFERED OR WASHER FACED
Hardness Rating69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Thread SeriesUNF
Thread Quantity Per Inch20
Nominal Thread Size0.500 INCHES IN
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data4 TYPE AND 16 STYLE AND B GRADE
Nut StyleSLOTTED, HEXAGON
Thread DirectionRIGHT-HAND
Width Across Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Nut Height0.427 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN
Thread Class2B
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5310-00-012-276111445A INTERCHANGEABLE
Nut,plain,slotted,hexagon
Brinkley Technology Group Llc Dba Hercules Manufacturing
1560-00-210-933712276-1 INTERCHANGEABLE
Fairing Assembly,fr
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
5905-00-376-9999 INTERCHANGEABLE
Resistor Assembly
4320-00-600-1826122761 INTERCHANGEABLE
Shaft,hydraulic Mot
Eaton Aerospace, Llc Dba Jackson South
5905-01-061-5556 INTERCHANGEABLE
Resistor,variable,wire Wound,non
5930-01-664-8888218510 INTERCHANGEABLE
Switch,pressure
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
218510 General Motors Corp (USA)
X1730A Liberty Ventures Inti, Llc (USA)
122761 Zf Industrieantriebe Witten Gmbh (DEU)
BK84S5 Bendix Corp the Brake and Steering Div (USA)
34021S Ford Motor Company (USA)
SK9433A Steego Corp (USA)
218510 Army Weapons Command Attn Amswe-Ree-S (USA)
MS35692-824 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFN836 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
34021S Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
5310008131203 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
Related Parts
5310-00-012-2761INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
11445A
1560-00-210-9337INTERCHANGEABLE
FAIRING ASSEMBLY,FR
12276-1
5905-00-376-9999INTERCHANGEABLE
RESISTOR ASSEMBLY
4320-00-600-1826INTERCHANGEABLE
SHAFT,HYDRAULIC MOT
122761
5905-01-061-5556INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
5930-01-664-8888INTERCHANGEABLE
SWITCH,PRESSURE
218510

Frequently Asked Questions

What is NSN 5310-00-813-1203?

NSN 5310-00-813-1203 is a Nut,plain,slotted,hexagon, manufactured by General Motors Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-813-1203?

NSN 5310-00-813-1203 has 11 cross-referenced part numbers: 218510 (General Motors Corp), X1730A (Liberty Ventures Inti, Llc), 122761 (Zf Industrieantriebe Witten Gmbh), BK84S5 (Bendix Corp the Brake and Steering Div), 34021S (Ford Motor Company) and 6 more.

What NSN replaces 5310-00-813-1203?

There are 6 known substitutes for 5310-00-813-1203: 5310-00-012-2761, 1560-00-210-9337, 5905-00-376-9999 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 218510?

Key specifications for 218510: Bearing Surface Type: CHAMFERED OR WASHER FACED; Hardness Rating: 69.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM; Thread Series: UNF; Thread Quantity Per Inch: 20. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-813-1203 still in active supply?

NSN 5310-00-813-1203 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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