PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51851-136Screw,tapping

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-012-8226 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-012-8226 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-012-8226. Primary manufacturer part number: MS51851-136.
Features
  • Screw,tapping — FSC 5305
  • Nonmachine Nominal Thread Diameter: 0.375 INCHES IN
  • Head Height: 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Nonmachine Thread Style: DOG TYPE (TYPE B OR C)
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL CORROSION RESISTING OVERALL
  • Width Between Flats: 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,tapping, cataloged under National Stock Number 5305-00-012-8226, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-012-8226
Primary Part NumberMS51851-136
Item NameScrew,tapping
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Nonmachine Nominal Thread Diameter0.375 INCHES IN
Head Height0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Nonmachine Thread StyleDOG TYPE (TYPE B OR C)
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL CORROSION RESISTING OVERALL
Width Between Flats0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Internal Drive StyleCROSS RECESS TYPE 1
Head StyleHEXAGON
Fastener Length0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5305-00-011-1655 INTERCHANGEABLE
Screw,tapping
5305-00-012-6042 INTERCHANGEABLE
Screw,tapping
5305-00-017-33949420415 INTERCHANGEABLE
Screw,tapping
General Motors Corp
5305-00-044-3552JD1151 INTERCHANGEABLE
Screw,tapping
Jenny Products, Inc
5935-00-224-1015 INTERCHANGEABLE
Socket,plug-in Electronic Compon
5305-00-550-1540 INTERCHANGEABLE
Screw,tapping
5305-00-550-3524 INTERCHANGEABLE
Screw,tapping
5935-00-803-9670544-0245-002 INTERCHANGEABLE
Plug,tip
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
Cross-Reference Index
Part NumberManufacturer
3KK180 Oshkosh Defense Llc (USA)
3KK180 Oshkosh Corp (USA)
5/16 X 3/4 TYPE 7 Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div (USA)
235A24 Cam Fabricated Systems Inc (USA)
235F21 Cam Fabricated Systems Inc (USA)
MS51851-136 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
FFS107TYPEBSTYLE10P Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51851-136 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
128226 General Motors Corp (USA)
235F43-21 Cam Fabricated Systems Inc (USA)
235A38-24 Cam Fabricated Systems Inc (USA)
Related Parts
5305-00-011-1655INTERCHANGEABLE
SCREW,TAPPING
5305-00-012-6042INTERCHANGEABLE
SCREW,TAPPING
5305-00-017-3394INTERCHANGEABLE
SCREW,TAPPING
9420415
5305-00-044-3552INTERCHANGEABLE
SCREW,TAPPING
JD1151
5935-00-224-1015INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
5305-00-550-1540INTERCHANGEABLE
SCREW,TAPPING
5305-00-550-3524INTERCHANGEABLE
SCREW,TAPPING
5935-00-803-9670INTERCHANGEABLE
PLUG,TIP
544-0245-002

Frequently Asked Questions

What is NSN 5305-00-012-8226?

NSN 5305-00-012-8226 is a Screw,tapping, 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: cancelled.

What are the part numbers for NSN 5305-00-012-8226?

NSN 5305-00-012-8226 has 11 cross-referenced part numbers: 3KK180 (Oshkosh Defense Llc), 3KK180 (Oshkosh Corp), 5/16 X 3/4 TYPE 7 (Usm Corp Sub of Emhart Industries Inc Parker-Kalon Fastener Div), 235A24 (Cam Fabricated Systems Inc), 235F21 (Cam Fabricated Systems Inc) and 6 more.

What NSN replaces 5305-00-012-8226?

There are 8 known substitutes for 5305-00-012-8226: 5305-00-011-1655, 5305-00-012-6042, 5305-00-017-3394 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51851-136?

Key specifications for MS51851-136: Nonmachine Nominal Thread Diameter: 0.375 INCHES IN; Head Height: 0.208 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; Nonmachine Thread Style: DOG TYPE (TYPE B OR C); Surface Treatment: PASSIVATE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-012-8226 still in active supply?

NSN 5305-00-012-8226 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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