PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S2818Screw,cap,hexagon Head

Meritor Industrial Products, Llc · NSN 5305-00-017-9890 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-017-9890 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-017-9890. Primary manufacturer part number: S2818.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Height: 0.312 INCHES NOMINAL IN
  • Thread Length: 1.250 INCHES MINIMUM IN
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-017-9890, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Meritor Industrial Products, Llc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-017-9890
Primary Part NumberS2818
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMeritor Industrial Products, Llc
StatusACTIVE
Head Height0.312 INCHES NOMINAL IN
Thread Length1.250 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Hardness Rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 5 GRADE
Head StyleHEXAGON
Thread Class2A A
Nominal Thread Diameter0.500 INCHES IN
Width Between Flats0.750 INCHES NOMINAL IN
Minimum Tensile Strength125000 POUNDS PER SQUARE INCH LBS
Fastener Length2.250 INCHES NOMINAL IN
Thread Quantity Per Inch13
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5998-00-682-4895 INTERCHANGEABLE
Circuit Card Assembly
4820-01-105-7490106343 INTERCHANGEABLE
Cock,drain
Itw Food Equipment Group Llc Dba Hobart Service
5340-01-129-9984385-8 INTERCHANGEABLE
Clamp,loop
Transdigm Inc Dba Adel Wiggins Group Div Adel Wiggins
5985-01-419-1893106343 INTERCHANGEABLE
Waveguide Assembly
Frontgrade Technologies Inc.
5306-01-683-2019179890 INTERCHANGEABLE
Bolt,machine
Progress Rail Locomotive Inc. Dba Progress Rail Switching Services Llc
Cross-Reference Index
Part NumberManufacturer
S2818 Meritor Industrial Products, Llc (USA)
106343 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
179890 General Motors Corp (USA)
MS35295-116 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
S2818 Meritor Heavy Vehicle Systems, Llc (USA)
179890 Army Weapons Command Attn Amswe-Ree-S (USA)
Related Parts
5998-00-682-4895INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4820-01-105-7490INTERCHANGEABLE
COCK,DRAIN
106343
5340-01-129-9984INTERCHANGEABLE
CLAMP,LOOP
385-8
5985-01-419-1893INTERCHANGEABLE
WAVEGUIDE ASSEMBLY
106343
5306-01-683-2019INTERCHANGEABLE
BOLT,MACHINE
179890

Frequently Asked Questions

What is NSN 5305-00-017-9890?

NSN 5305-00-017-9890 is a Screw,cap,hexagon Head, manufactured by Meritor Industrial Products, Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-017-9890?

NSN 5305-00-017-9890 has 6 cross-referenced part numbers: S2818 (Meritor Industrial Products, Llc), 106343 (Chrysler Realty Company Llc Dba Daimler Chrysler), 179890 (General Motors Corp), MS35295-116 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), S2818 (Meritor Heavy Vehicle Systems, Llc) and 1 more.

What NSN replaces 5305-00-017-9890?

There are 5 known substitutes for 5305-00-017-9890: 5998-00-682-4895, 4820-01-105-7490, 5340-01-129-9984 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S2818?

Key specifications for S2818: Head Height: 0.312 INCHES NOMINAL IN; Thread Length: 1.250 INCHES MINIMUM IN; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 14 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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