PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51095-427Screw,cap,hexagon Head

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-01-374-6944 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-374-6944 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-374-6944. Primary manufacturer part number: MS51095-427.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
  • Minimum Yield Strength: 120000 POUNDS PER SQUARE INCH LBS
  • Material: STEEL OVERALL
  • Surface Treatment Document and Classification: QQ-P-416,TY2,CL2 FED SPEC 1ST TREATMENT RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
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 5305-01-374-6944, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-374-6944
Primary Part NumberMS51095-427
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Thread DirectionRIGHT-HAND
Head Height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
Minimum Yield Strength120000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationQQ-P-416,TY2,CL2 FED SPEC 1ST TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Length1.250 INCHES NOMINAL IN
Thread Quantity Per Inch13
Nominal Thread Diameter0.500 INCHES IN
Material Document and ClassificationFED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
Thread Class2A A
Head StyleHEXAGON
Width Between Flats0.736 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Fastener Length4.656 INCHES MINIMUM AND 4.750 INCHES MAXIMUM IN
Hardness Rating25.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5305-00-165-8074MS51095-420 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-490-1851MS51095-444 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-941-3618MS51095-303 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-941-9459MS51095-384 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-942-8422MS51095-313 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-964-0562MS51095-369 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-964-0589MS51095-416 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-110-7903MS51095-401 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-01-111-0622MS51095-338 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5306-01-117-0650MS51095-309L INTERCHANGEABLE
Bolt,machine
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS51095-427 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS51095-427 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NASM51095 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-165-8074INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-420
5305-00-490-1851INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-444
5305-00-941-3618INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-303
5305-00-941-9459INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-384
5305-00-942-8422INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-313
5305-00-964-0562INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-369
5305-00-964-0589INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-416
5305-01-110-7903INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-401
5305-01-111-0622INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS51095-338
5306-01-117-0650INTERCHANGEABLE
BOLT,MACHINE
MS51095-309L
5306-01-206-8396INTERCHANGEABLE
BOLT,MACHINE
MS51095-446

Frequently Asked Questions

What is NSN 5305-01-374-6944?

NSN 5305-01-374-6944 is a Screw,cap,hexagon Head, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-374-6944?

NSN 5305-01-374-6944 has 4 cross-referenced part numbers: MS51095-427 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS51095-427 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NASM51095 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-01-374-6944?

There are 11 known substitutes for 5305-01-374-6944: 5305-00-165-8074, 5305-00-490-1851, 5305-00-941-3618 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51095-427?

Key specifications for MS51095-427: Thread Direction: RIGHT-HAND; Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN; Minimum Yield Strength: 120000 POUNDS PER SQUARE INCH LBS; Material: STEEL OVERALL. 16 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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