NSN 5305-01-426-8409

Part Details | MACHINE SCREW

5305-01-426-8409 An externally threaded fastener whose threaded portion is of one nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL WRENCHING; and SCREW, CAP SOCKET HEAD.

Alternate Parts: FFS92T111S2C, FF-S-92T111S2C, 211067080, DF33108120, DF331081-20, 5305-01-426-8409, 01-426-8409, 5305014268409, 014268409

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53MAR 19, 199601-426-840906657 ( SCREW, MACHINE )
REFERENCE DRAWINGS & PICTURES

DISHED HEXAGON

CROSS RECESS TYPE 1

Cross Reference | NSN 5305-01-426-8409
Part Number Cage Code Manufacturer
FF-S-92T111S2C81348FEDERAL SPECIFICATIONSPROMULGATED BY GENERAL SERVICES
21106708053711NAVAL SEA SYSTEMS COMMAND
DF331081-2053711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 5305-01-426-8409
Characteristic Specifications
THREAD SERIES DESIGNATOR UNC
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.875 INCHES NOMINAL
FASTENER LENGTH0.875 INCHES NOMINAL
SCREW MATERIAL NICKEL ALLOY 400
LOCKING FEATURE MATERIAL PLASTIC POLYAMIDE
HEAD STYLE9 DISHED HEXAGON
HEAD DIAMETER0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE82.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE CROSS RECESS TYPE 1
LOCKING FEATURER$DDK$DDL