PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NASM51045-MS51045-42Setscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-550-4289 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-550-4289 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-550-4289. Primary manufacturer part number: NASM51045-MS51045-42.
Features
  • Setscrew — FSC 5305
  • Point Style: HALF DOG
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
  • Thread Quantity Per Inch: 24
Applications
  • Applications requiring Steel Comp 302 or Steel Comp 303 or Steel Comp 304 or Steel Comp 316 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-550-4289, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-550-4289
Primary Part NumberNASM51045-MS51045-42
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Point StyleHALF DOG
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OVERALL
Thread Quantity Per Inch24
Thread Class3A A
Head StyleHEADLESS (SETSCREW)
Nominal Thread Diameter0.190 INCHES IN
Thread Length0.375 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Internal Drive StyleHEXAGON
Width Across Flats0.094 INCHES NOMINAL IN
Fastener Length0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-022-3042 INTERCHANGEABLE
Setscrew
5305-00-022-3052 INTERCHANGEABLE
Setscrew
5305-00-022-3150 INTERCHANGEABLE
Setscrew
5305-00-022-3334 INTERCHANGEABLE
Setscrew
5305-00-206-22861354 INTERCHANGEABLE
Setscrew
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5305-00-206-46745100S4700-470114PC17 INTERCHANGEABLE
Setscrew
Naval Ship Systems Command
5305-00-527-4430 INTERCHANGEABLE
Setscrew
5305-00-527-5434 INTERCHANGEABLE
Setscrew
5305-00-656-0021 INTERCHANGEABLE
Setscrew
5305-00-660-2403 INTERCHANGEABLE
Setscrew
Cross-Reference Index
Part NumberManufacturer
FFS103TYPE3STYLE6 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
43S19018-673 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MS51045-42 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
NASM51045-MS51045-42 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
5305-00-022-3042INTERCHANGEABLE
SETSCREW
5305-00-022-3052INTERCHANGEABLE
SETSCREW
5305-00-022-3150INTERCHANGEABLE
SETSCREW
5305-00-022-3334INTERCHANGEABLE
SETSCREW
5305-00-206-2286INTERCHANGEABLE
SETSCREW
1354
5305-00-206-4674INTERCHANGEABLE
SETSCREW
5100S4700-470114PC17
5305-00-527-4430INTERCHANGEABLE
SETSCREW
5305-00-527-5434INTERCHANGEABLE
SETSCREW
5305-00-656-0021INTERCHANGEABLE
SETSCREW
5305-00-660-2403INTERCHANGEABLE
SETSCREW
5305-00-682-5724INTERCHANGEABLE
SETSCREW
5305-00-682-5963INTERCHANGEABLE
SETSCREW

Frequently Asked Questions

What is NSN 5305-00-550-4289?

NSN 5305-00-550-4289 is a Setscrew, 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 5305-00-550-4289?

NSN 5305-00-550-4289 has 4 cross-referenced part numbers: FFS103TYPE3STYLE6 (Federal Specifications Promulgated by General Services Administration Washington DC), 43S19018-673 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MS51045-42 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), NASM51045-MS51045-42 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5305-00-550-4289?

There are 12 known substitutes for 5305-00-550-4289: 5305-00-022-3042, 5305-00-022-3052, 5305-00-022-3150 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NASM51045-MS51045-42?

Key specifications for NASM51045-MS51045-42: Point Style: HALF DOG; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES 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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