PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35293-4Screw,cap,hexagon Head

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5305-00-012-1871 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-012-1871 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-012-1871. Primary manufacturer part number: MS35293-4.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Head Height: 0.156 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL
  • Surface Treatment: PHOSPHATE OVERALL
  • Head Style: HEXAGON
  • Thread Direction: RIGHT-HAND
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 5305-00-012-1871, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5305-00-012-1871
Primary Part NumberMS35293-4
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Thread Class2A A
Head Height0.156 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Hardness Rating100.0 ROCKWELL B MAXIMUM OVERALL
Surface TreatmentPHOSPHATE OVERALL
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.250 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Width Between Flats0.438 INCHES NOMINAL IN
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 2 GRADE
Minimum Tensile Strength69000 POUNDS PER SQUARE INCH LBS
Thread Quantity Per Inch20
Thread Length0.562 INCHES MAXIMUM IN
Fastener Length0.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3635-01-064-1820 INTERCHANGEABLE
Lapping Machine,quartz Crystal
Cross-Reference Index
Part NumberManufacturer
MS35293-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
121871 General Motors Corp (USA)
Related Parts
3635-01-064-1820INTERCHANGEABLE
LAPPING MACHINE,QUARTZ CRYSTAL

Frequently Asked Questions

What is NSN 5305-00-012-1871?

NSN 5305-00-012-1871 is a Screw,cap,hexagon Head, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-012-1871?

NSN 5305-00-012-1871 has 2 cross-referenced part numbers: MS35293-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 121871 (General Motors Corp).

What NSN replaces 5305-00-012-1871?

There is 1 known substitute for 5305-00-012-1871: 3635-01-064-1820. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35293-4?

Key specifications for MS35293-4: Thread Class: 2A A; Head Height: 0.156 INCHES NOMINAL IN; Material: STEEL OVERALL; Hardness Rating: 100.0 ROCKWELL B MAXIMUM OVERALL. 15 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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