NSN 5305-01-231-2210 BACB30LH420, BACB30LH4-20, 01-231-2210
Product Details | CLOSE TOLERANCE SCREW
5305-01-231-2210 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.
Part Alternates: BACB30LH420, BACB30LH4-20, 5305-01-231-2210, 01-231-2210, 5305012312210, 012312210
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 24 APR 1986 | 01-231-2210 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Cross Reference | NSN 5305-01-231-2210
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| BACB30LH4-20 | 81205 | THE BOEING COMPANY DBA BOEING |
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Related Products | NSN 5305-01-231-2210
Technical Data | NSN 5305-01-231-2210
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJS |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.389 INCHES NOMINAL |
| FASTENER LENGTH | 1.624 INCHES MINIMUM AND |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE II,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SINGLE SHEAR STRENGTH | 95000 POUNDS PER SQUARE INCH |
| HEAD STYLE | FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.2485 INCHES MINIMUM AND |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND |
| INTERNAL DRIVE STYLE | CROSS RECESS TYPE 1 |
| GRIP LENGTH | 1.240 INCHES MINIMUM AND |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND |
| SPECIAL FEATURES | IDENTIFY W/GREEN DYE OR PAINT ON THREAD END |
| SPECIFICATION/STANDARD DATA | 81205-BACB30LH MANUFACTURERS STANDARD |
Restrictions/Controls & Freight Information | NSN 5305-01-231-2210
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| 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 | ||