Part Details | CLOSE TOLERANCE SCREW
5305-01-270-0074 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: CA2106210311, CA21062-10-3-11, K86S02493, K86S0249-3, K86S02493, K86S0249-3, 5305-01-270-0074, 01-270-0074, 5305012700074, 012700074
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | DEC 24, 1987 | 01-270-0074 | 29294 ( SCREW, CLOSE TOLERANCE ) |
REFERENCE DRAWINGS & PICTURES
DISHED HEXAGON
CROSS RECESS TYPE 1
Cross Reference | NSN 5305-01-270-0074
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CA21062-10-3-11 | 29372 | ARCONIC GLOBAL FASTENERS & RINGS,INC. |
| K86S0249-3 | 12464 | MCDONNELL DOUGLAS CORPMCDONNELL DOUGLAS ELECTRONIC SYSTEMS |
| K86S0249-3 | 81205 | THE BOEING COMPANYDBA BOEING |
Technical Data | NSN 5305-01-270-0074
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNF |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| FASTENER LENGTH | 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM |
| HEAD STYLE | 2 DISHED HEXAGON |
| HEAD DIAMETER | 0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM |
| HEAD HEIGHT | 0.121 INCHES MINIMUM AND 0.133 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| GRIP LENGTH | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM |
| GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| SPECIAL FEATURES | TWO KEYWAYS ALONG THREADS 180 DEG APART; WIDTH OF KEYWAYS 0.044 IN. MIN. AND 0.054 IN. MAX |