PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43-S-19017-795Setscrew

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5305-00-274-0078 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-274-0078 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-274-0078. Primary manufacturer part number: 43-S-19017-795.
Features
  • Setscrew — FSC 5305
  • Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: UNF
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Material: STEEL COMP 416 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Head Style: HEADLESS (SETSCREW)
Applications
  • Applications requiring Steel Comp 416 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-274-0078, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-274-0078
Primary Part Number43-S-19017-795
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Material Document and ClassificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNF
Thread DirectionRIGHT-HAND
Nominal Thread Diameter0.250 INCHES IN
MaterialSTEEL COMP 416 OVERALL
Surface TreatmentPASSIVATE OVERALL
Head StyleHEADLESS (SETSCREW)
Thread Quantity Per Inch28
Nondefinitive Spec/std DataG TYPE
Point StyleCUP
Fastener Length0.500 INCHES NOMINAL IN
Width Across Flats0.125 INCHES MINIMUM AND 0.127 INCHES MAXIMUM IN
Internal Drive StyleHEXAGON
Thread Class2A A
Thread Length0.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-206-3454AES32U312312UG6A11 INTERCHANGEABLE
Setscrew
The American Society of Mechanical Engineers
5305-00-254-7008 INTERCHANGEABLE
Setscrew
5305-00-272-6191R186PC26 INTERCHANGEABLE
Setscrew
Circor Naval Solutions Llc Dba Warren Pumps
5305-00-274-008543-S-90591-1215 INTERCHANGEABLE
Setscrew
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-274-008943-S-90591-1715 INTERCHANGEABLE
Setscrew
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-375-7417R126PCSP37 INTERCHANGEABLE
Setscrew
Circor Naval Solutions Llc Dba Warren Pumps
5305-00-468-99684700-3005960PC31 INTERCHANGEABLE
Setscrew
Naval Ship Systems Command
Cross-Reference Index
Part NumberManufacturer
43-S-19017-795 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MILS933TYPEG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5305-00-206-3454INTERCHANGEABLE
SETSCREW
AES32U312312UG6A11
5305-00-254-7008INTERCHANGEABLE
SETSCREW
5305-00-272-6191INTERCHANGEABLE
SETSCREW
R186PC26
5305-00-274-0085INTERCHANGEABLE
SETSCREW
43-S-90591-1215
5305-00-274-0089INTERCHANGEABLE
SETSCREW
43-S-90591-1715
5305-00-375-7417INTERCHANGEABLE
SETSCREW
R126PCSP37
5305-00-468-9968INTERCHANGEABLE
SETSCREW
4700-3005960PC31

Frequently Asked Questions

What is NSN 5305-00-274-0078?

NSN 5305-00-274-0078 is a Setscrew, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-274-0078?

NSN 5305-00-274-0078 has 2 cross-referenced part numbers: 43-S-19017-795 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), MILS933TYPEG (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5305-00-274-0078?

There are 7 known substitutes for 5305-00-274-0078: 5305-00-206-3454, 5305-00-254-7008, 5305-00-272-6191 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 43-S-19017-795?

Key specifications for 43-S-19017-795: Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Thread Series Designator: UNF; Thread Direction: RIGHT-HAND; Nominal Thread Diameter: 0.250 INCHES IN. 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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