NSN 5305-01-195-7948

Part Details | CLOSE TOLERANCE SCREW

5305-01-195-7948 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Alternate Parts: HT4075V4720, HT4075V4-7-20, 3M1034V4720, 3M1034V4-7-20, HT4075V4720, HT4075V4-7-20, HT4075V4720, HT4075V4-7-20, 11839V4720, 11839V4-7-20, HT4075V4720, HT4075V4-7-20, HT4075V4720, HT4075V4-7-20, 5305-01-195-7948, 01-195-7948, 5305011957948, 011957948

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53DEC 03, 198401-195-794829294 ( SCREW, CLOSE TOLERANCE )
REFERENCE DRAWINGS & PICTURES

HEXAGON COUNTERSUNK

HIGH-TORQUE

Cross Reference | NSN 5305-01-195-7948
Part Number Cage Code Manufacturer
HT4075V4-7-2092215ARCONIC GLOBAL FASTENERS & RINGS,INC.
3M1034V4-7-2076301BOEING COMPANY, THEDBA BOEING
HT4075V4-7-2073197HI-SHEAR CORPORATION
HT4075V4-7-20L4528LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC
11839V4-7-2059563REID PRODUCTS INC.DBA REID PRODUCTS
HT4075V4-7-2056878SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION
HT4075V4-7-2080539SPS TECHNOLOGIES, LLCDBA AEROSPACE FASTENERS GROUP
Technical Data | NSN 5305-01-195-7948
Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH0.444 INCHES MINIMUM AND 0.494 INCHES MAXIMUM
FASTENER LENGTH0.892 INCHES MINIMUM AND 0.922 INCHES MAXIMUM
HEAD STYLE0 HEXAGON COUNTERSUNK
HEAD DIAMETER0.497 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
COUNTERSINK ANGLE99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
INTERNAL DRIVE STYLE HIGH-TORQUE
GRIP LENGTH0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
GRIP DIAMETER0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
SPECIAL FEATURESTAPPED HOLE IN HEAD 0.1380-32,UNJC-3B THREADS. DISTANCE FROM TOP OF HEAD TO INJECTION PORT 0.200 INCH. INJECTION PORT 0.120 IN. LG,0.060 IN. WIDE
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT