PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R126PCSP37Setscrew

Circor Naval Solutions Llc Dba Warren Pumps · NSN 5305-00-375-7417 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-375-7417 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-375-7417. Primary manufacturer part number: R126PCSP37.
Features
  • Setscrew — FSC 5305
  • Thread Length: 0.500 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Thread Quantity Per Inch: 20
  • Material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
  • Internal Drive Style: HEXAGON
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Applications requiring Nickel Alloy 400 or Nickel Alloy R-405 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-375-7417, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 5 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
NSN5305-00-375-7417
Primary Part NumberR126PCSP37
Item NameSetscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
Thread Length0.500 INCHES MAXIMUM IN
Thread Class3A A
Material Document and ClassificationQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
Thread Quantity Per Inch20
MaterialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
Internal Drive StyleHEXAGON
Nominal Thread Diameter0.250 INCHES IN
Thread DirectionRIGHT-HAND
Point StyleCUP
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Departure From Cited DesignatorAS MODIFIED BY MATERIAL
Head StyleHEADLESS (SETSCREW)
Width Across Flats0.125 INCHES NOMINAL IN
Fastener Length0.500 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 TYPE AND 4 STYLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-022-3088FF-S-200B INTERCHANGEABLE
Setscrew
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5305-00-043-2393 INTERCHANGEABLE
Setscrew
5315-00-132-807011783 INTERCHANGEABLE
Key,machine
Circor Naval Solutions Llc Dba Warren Pumps
5305-00-206-3454AES32U312312UG6A11 INTERCHANGEABLE
Setscrew
The American Society of Mechanical Engineers
9535-00-234-2166 INTERCHANGEABLE
Sheet,metal
5305-00-254-7008 INTERCHANGEABLE
Setscrew
5305-00-272-6191R186PC26 INTERCHANGEABLE
Setscrew
Circor Naval Solutions Llc Dba Warren Pumps
5305-00-274-007843-S-19017-795 INTERCHANGEABLE
Setscrew
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
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
Cross-Reference Index
Part NumberManufacturer
569-4700-1189569PCSP14 Naval Ship Systems Command (USA)
525-4700-87303REV1PCS37 Naval Ship Systems Command (USA)
563-4105-938325PCSP14 Naval Ship Systems Command (USA)
R204PC23 Circor Naval Solutions Llc Dba Warren Pumps (USA)
QQ-N-281D Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-S-200B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
525-4700-87304PC23 Naval Ship Systems Command (USA)
R53PC23SP14 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R126PCSP37 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
FFS103TYPE3STYLE4 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
282-3801-771612REVBPC26 Naval Ship Systems Command (USA)
7868-82PC12 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
579-6501-1896522REVAPC12 Naval Ship Systems Command (USA)
3801-771613REVBPC10 Naval Ship Systems Command (USA)
563-4105-938325PC23 Naval Ship Systems Command (USA)
4700-3163646PC23 Naval Ship Systems Command (USA)
MILS933TYPEG Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
R205PCSP14 Circor Naval Solutions Llc Dba Warren Pumps (USA)
R127PC23 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5305-00-022-3088INTERCHANGEABLE
SETSCREW
FF-S-200B
5305-00-043-2393INTERCHANGEABLE
SETSCREW
5315-00-132-8070INTERCHANGEABLE
KEY,MACHINE
11783
5305-00-206-3454INTERCHANGEABLE
SETSCREW
AES32U312312UG6A11
9535-00-234-2166INTERCHANGEABLE
SHEET,METAL
5305-00-254-7008INTERCHANGEABLE
SETSCREW
5305-00-272-6191INTERCHANGEABLE
SETSCREW
R186PC26
5305-00-274-0078INTERCHANGEABLE
SETSCREW
43-S-19017-795
5305-00-274-0085INTERCHANGEABLE
SETSCREW
43-S-90591-1215
5305-00-274-0089INTERCHANGEABLE
SETSCREW
43-S-90591-1715
5305-00-297-2935INTERCHANGEABLE
SETSCREW
5305-00-395-4184INTERCHANGEABLE
SETSCREW

Frequently Asked Questions

What is NSN 5305-00-375-7417?

NSN 5305-00-375-7417 is a Setscrew, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-375-7417?

NSN 5305-00-375-7417 has 19 cross-referenced part numbers: 569-4700-1189569PCSP14 (Naval Ship Systems Command), 525-4700-87303REV1PCS37 (Naval Ship Systems Command), 563-4105-938325PCSP14 (Naval Ship Systems Command), R204PC23 (Circor Naval Solutions Llc Dba Warren Pumps), QQ-N-281D (Federal Specifications Promulgated by General Services Administration Washington DC) and 14 more.

What NSN replaces 5305-00-375-7417?

There are 12 known substitutes for 5305-00-375-7417: 5305-00-022-3088, 5305-00-043-2393, 5315-00-132-8070 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R126PCSP37?

Key specifications for R126PCSP37: Thread Length: 0.500 INCHES MAXIMUM IN; Thread Class: 3A A; Material Document and Classification: QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL; Thread Quantity Per Inch: 20. 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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