PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS51964-28Setscrew

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5305-00-724-5801 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-724-5801 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-724-5801. Primary manufacturer part number: MS51964-28.
Features
  • Setscrew — FSC 5305
  • Point Style: CUP
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
  • Width Across Flats: 0.062 INCHES NOMINAL IN
  • Thread Class: 3A A
Applications
  • Applications requiring Steel Comp 4037 or Steel Comp 4137 or Steel Comp 4140 or Steel Comp 8630 or Steel Comp 8740 Overall construction
General Description

The Setscrew, cataloged under National Stock Number 5305-00-724-5801, 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 5 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: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-724-5801
Primary Part NumberMS51964-28
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
StatusCANCELLED
Point StyleCUP
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Surface Treatment Document and ClassificationQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
Width Across Flats0.062 INCHES NOMINAL IN
Thread Class3A A
Thread DirectionRIGHT-HAND
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Head StyleHEADLESS (SETSCREW)
Internal Drive StyleHEXAGON
Thread Quantity Per Inch40
Thread Series DesignatorUNF
Nominal Thread Diameter0.138 INCHES IN
Thread Length0.188 INCHES MAXIMUM IN
Fastener Length0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6625-00-170-92363334 INTERCHANGEABLE
Detector,null
Megger Ltd
5940-00-258-2106100078P1 INTERCHANGEABLE
Terminal,lug
Lockheed Martin Corporation Div Rms
1730-00-471-9546 INTERCHANGEABLE
Filter,air Line
2530-00-718-66833110163 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Ed Etnyre & Co
5998-00-827-1960 INTERCHANGEABLE
Electronic Components Assembly
5950-00-880-5971 INTERCHANGEABLE
Transformer,current
5935-00-888-9481LS15888 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5340-00-889-96673334 INTERCHANGEABLE
Clamp,loop
Heyco Inc Dba Heyco Products
4720-00-933-587803-5107 INTERCHANGEABLE
Hose,nonmetallic
Bacharach, Inc.
6515-01-139-882700-3334-000-00 INTERCHANGEABLE
Rongeur
Zimmer, Inc. Dba Z Hotel
Cross-Reference Index
Part NumberManufacturer
MS51964-28 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
10068985-25 Us Army Aviation and Missile Command (USA)
3334 Eaton Aerospace, Llc Dba Jackson South (USA)
MS51964-28 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
FFS200 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
6625-00-170-9236INTERCHANGEABLE
DETECTOR,NULL
3334
5940-00-258-2106INTERCHANGEABLE
TERMINAL,LUG
100078P1
1730-00-471-9546INTERCHANGEABLE
FILTER,AIR LINE
2530-00-718-6683INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
3110163
5998-00-827-1960INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5950-00-880-5971INTERCHANGEABLE
TRANSFORMER,CURRENT
5935-00-888-9481INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
LS15888
5340-00-889-9667INTERCHANGEABLE
CLAMP,LOOP
3334
4720-00-933-5878INTERCHANGEABLE
HOSE,NONMETALLIC
03-5107
6515-01-139-8827INTERCHANGEABLE
RONGEUR
00-3334-000-00
4820-01-149-3336INTERCHANGEABLE
GUIDE,SEAT RETAINING
N32123
5340-01-226-5996INTERCHANGEABLE
COVER,ACCESS

Frequently Asked Questions

What is NSN 5305-00-724-5801?

NSN 5305-00-724-5801 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: cancelled.

What are the part numbers for NSN 5305-00-724-5801?

NSN 5305-00-724-5801 has 5 cross-referenced part numbers: MS51964-28 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 10068985-25 (Us Army Aviation and Missile Command), 3334 (Eaton Aerospace, Llc Dba Jackson South), MS51964-28 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), FFS200 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5305-00-724-5801?

There are 12 known substitutes for 5305-00-724-5801: 6625-00-170-9236, 5940-00-258-2106, 1730-00-471-9546 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS51964-28?

Key specifications for MS51964-28: Point Style: CUP; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-724-5801 still in active supply?

NSN 5305-00-724-5801 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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