Product Details | SOCKET HEAD CAP SCREW

5305-00-026-6548 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.

Part Alternates: FFS86TYPE1STYLE11, 734908PC50, 5305-00-026-6548, 00-026-6548, 5305000266548, 000266548

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 01-JAN-63 00-026-6548

Drawings & Photos | NSN 5305-00-026-6548


Cross Reference | NSN 5305-00-026-6548

Part Number Cage Code Manufacturer
125-2119083 PIECE 15 80064 NAVAL SHIP SYSTEMS COMMAND
12Z1196-34 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
429954PC7 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
99-1403 99167 HAMILTON SUNDSTRAND CORPORATION
FF-S-86 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES
HS503233 73030 HAMILTON SUNDSTRAND CORPORATION
MS24676-35 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
MS24677-35 80205 NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
MS24677-35 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS

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Technical Data | NSN 5305-00-026-6548

Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER 0.250 INCHES
THREAD QUANTITY PER INCH 20
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.688 INCHES MAXIMUM
FASTENER LENGTH 0.688 INCHES NOMINAL
MATERIAL STEEL COMP 4135 OR STEEL COMP 4137 OR STEEL COMP 8635 OR STEEL COMP 8640 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-Z-325,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
MINIMUM YIELD STRENGTH 140000 POUNDS PER SQUARE INCH
HEAD STYLE C49 FLAT CHAMFER
HEAD DIAMETER 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM
HEAD HEIGHT 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
INTERNAL DRIVE STYLE D5 HEXAGON
WIDTH ACROSS FLATS 0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM
HOLE CONFIGURATION STYLE E9 ROUND
HOLE TYPE DRILLED
HOLE QUANTITY 4
HOLE DIAMETER 0.062 INCHES NOMINAL
NONDEFINITIVE SPEC/STD DATA 1 TYPE AND 11 STYLE
MANUFACTURERS CODE 81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE FFS86TYPE1STYLE11

Restrictions/Controls & Freight Information | NSN 5305-00-026-6548

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information