NSN 5305-01-581-5559 BACB30YP6K4, 01-581-5559, 015815559
Product Details | CLOSE TOLERANCE SCREW
5305-01-581-5559 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: BACB30YP6K4, 5305-01-581-5559, 01-581-5559, 5305015815559, 015815559
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 21 JAN 2010 | 01-581-5559 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Demand History | NSN 5305-01-581-5559
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| BACB30YP6K4 | 2025-12-353 | 1500 | SG |
| 5305-01-581-5559 | 2017-07-194 | 900 | DIBBS |
| 5305-01-581-5559 | 2016-10-278 | 1095 | DIBBS |
| BACB30YP6K4 | 2013-10-294 | 6 | US |
| BACB30YP6K4 | 2013-10-294 | 12 | US |
Cross Reference | NSN 5305-01-581-5559
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| BACB30YP6K4 | 81205 | THE BOEING COMPANY DBA BOEING |
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Related Products | NSN 5305-01-581-5559
Technical Data | NSN 5305-01-581-5559
| Characteristic | Specifications |
|---|---|
| THREAD LENGTH | 0.285 INCHES MINIMUM AND 0.295 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BMS 10-85 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD SERIES DESIGNATOR | UNJC |
| HEAD HEIGHT | 0.437 INCHES MINIMUM AND 0.472 INCHES MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| GRIP LENGTH | 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM |
| MATERIAL | TITANIUM ALLOY OVERALL |
| THREAD QUANTITY PER INCH | 32 |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| HEAD DIAMETER | 0.2815 INCHES MINIMUM AND 0.2865 INCHES MAXIMUM |
| NOMINAL THREAD DIAMETER | 0.190 INCHES |
| FASTENER LENGTH | 0.534 INCHES MINIMUM AND 0.554 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES THREADS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BOLT,CLOSE TOLERANCE, 100 DEG REDUCED SHEAR DOME HEAD, HEX DRIVE, 95 KSI SHEAR, 6AL-4V TITANIUM, LIGHTWEIGHT |
| SURFACE FINISH | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| INTERNAL DRIVE STYLE | W/O INTERNAL DRIVE |
| GRIP DIAMETER | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ALUMINUM OVERALL |
| SURFACE FINISH | 32.0 MICROINCHES GRIP |
| HEAD STYLE | FILLISTER COUNTERSUNK |
| THREAD CLASS | 3A |
Restrictions/Controls & Freight Information | NSN 5305-01-581-5559
| 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. |
| Electro-static Discharge Susceptible: | A | No known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity |
| 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. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||
Management | NSN 5305-01-581-5559
Army
Navy| Category | Code | Description |
|---|---|---|
| Materiel Category and Inventory Manager | T | Industrial Supplies (DLA/GSA Items) |
| Appropriation and Budget Activity | 2 | Stock Fund Secondary Items |
| Management Inventory Segment | 2 | NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable. |
| Specific Group/Generic Code | 0 | Medical Materiel |
| Weapons Systems/End Item or Homogeneous Group | 00 | DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item |
| Accounting Requirements Code | X | Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DA | Department of the Army |
| Service Organization | A | U.S. Army |
| Reparability | Z | This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item. |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |