NSN 5305-00-283-7497
Part Details | CLOSE TOLERANCE SCREW
5305-00-283-7497 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: ST3M547727, ST3M547-7-27, HT308727, HT308-7-27, HS26237Z274, HS2623-7Z274, HS26237Z27Y, HS2623-7Z27Y, HT308727, HT308-7-27, 66904H727, 66904H7-27, 66904H727, 66904H7-27, 5305-00-283-7497, 00-283-7497, 5305002837497, 002837497
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | AUG 28, 1973 | 00-283-7497 | 29294 ( SCREW, CLOSE TOLERANCE ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON COUNTERSUNK
HIGH-TORQUE
Cross Reference | NSN 5305-00-283-7497
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| ST3M547-7-27 | 76301 | BOEING COMPANY, THEDBA BOEING |
| HT308-7-27 | 73197 | HI-SHEAR CORPORATION |
| HS2623-7Z274 | 97928 | HUCK INTL INC |
| HS2623-7Z27Y | 97928 | HUCK INTL INC |
| HT308-7-27 | L4528 | LISI AEROSPACE CANADA CORPDIV HI SHEAR HOLDINGS INC |
| 66904H7-27 | 50392 | SPS TECHNOLOGIES INC |
| 66904H7-27 | 56878 | SPS TECHNOLOGIES, LLCDBA AEROSPACE DIVISION |
Technical Data | NSN 5305-00-283-7497
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.574 INCHES MINIMUM AND 0.640 INCHES MAXIMUM |
| FASTENER LENGTH | 2.272 INCHES MINIMUM AND 2.318 INCHES MAXIMUM |
| HEAD STYLE | 0 HEXAGON COUNTERSUNK |
| HEAD DIAMETER | 0.880 INCHES MINIMUM AND 0.890 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | HIGH-TORQUE |
| GRIP LENGTH | 1.678 INCHES MINIMUM AND 1.698 INCHES MAXIMUM |
| GRIP DIAMETER | 0.4672 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 76301-ST3547 MANUFACTURERS STANDARD |