NSN 5305-01-056-3204 NAS1581A4T6, NAS1581F4T6, 10114923
Product Details | CLOSE TOLERANCE SCREW
5305-01-056-3204 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: NAS1581A4T6, NAS1581F4T6, 10114923 , 5305-01-056-3204, 01-056-3204, 5305010563204, 010563204
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 20 FEB 1978 | 01-056-3204 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-01-056-3204
Demand History | NSN 5305-01-056-3204
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 5305-01-056-3204 | 2025-11-316 | 1000 | United States |
| NAS1581A4T6 | 2025-07-183 | 236 | United States |
| NAS1581A4T6 | 2025-05-135 | 120 | United States |
| 5305-01-056-3204 | 2024-11-327 | 300 | United States |
| 5305-01-056-3204 | 2024-09-268 | 500 | United States |
| 5305-01-056-3204 | 2024-03-64 | 250 | United States |
| NAS1581F4T6 | 2024-02-51 | 100 | United States |
| 5305-01-056-3204 | 2024-02-37 | 30 | United States |
| 5305-01-056-3204 | 2022-11-324 | 86948 | DIBBS |
| NAS1581A4T6 | 2022-08-220 | 1173 | US |
| 5305-01-056-3204 | 2021-07-195 | 440 | Taiwan |
| 5305-01-056-3204 | 2021-06-157 | 271146 | DIBBS |
| 5305-01-056-3204 | 2021-01-07 | 121011 | DIBBS |
| 5305-01-056-3204 | 2020-12-362 | 121011 | DIBBS |
| 5305-01-056-3204 | 2020-09-261 | 152763 | DIBBS |
| NAS1581A4T6 | 2019-09-252 | 20 | us |
| NAS1581A4T6 | 2019-09-252 | 20 | |
| NAS1581F4T6 | 2018-10-278 | 20 | US |
| 5305-01-056-3204 | 2018-10-275 | 20000 | Singapore |
| 5305-01-056-3204 | 2017-02-53 | 1800 | MANUAL |
| 5305-01-056-3204 | 2016-11-327 | 1 | DIBBS-RFPs |
| 5305-01-056-3204 | 2009-10-286 | 5000 | US |
| 5305-01-056-3204 | 2009-08-216 | 151541 | DIBBS |
| NAS1581A4T6 | 2009-07-198 | 2000 | US |
| NAS1581F4T6 | 2009-07-198 | 2000 | US |
| NAS1581F4T6 | 2009-07-198 | 5000 | US |
| 5305-01-056-3204 | 2008-07-198 | 750500 | DIBBS |
| 5305-01-056-3204 | 2008-05-133 | 167132 | DIBBS |
| 5305-01-056-3204 | 2008-03-77 | 135001 | DIBBS |
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Related Products | NSN 5305-01-056-3204
Technical Data | NSN 5305-01-056-3204
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.378 INCHES MINIMUM AND 0.428 INCHES MAXIMUM |
| FASTENER LENGTH | 0.763 INCHES MINIMUM AND 0.793 INCHES MAXIMUM |
| MATERIAL | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| HEAD STYLE | C50 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.350 INCHES MINIMUM AND 0.399 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 100.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | D8 TORQUE SET |
| GRIP LENGTH | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS |
| SPECIFICATION/STANDARD DATA | 80205-NAS1581 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
Restrictions/Controls & Freight Information | NSN 5305-01-056-3204
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| 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. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| 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 |
|---|---|---|
| NMF Description | 093486 | BOLTS,NUTS OR SCREWS, NOI (SUB 3) |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 713 | unknown |
| Originating Activity Code | KZ | Defense Supply Center Philadelphia Philadelphia, PA 19101 |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 5305-01-056-3204
Air Force
Navy| Category | Code | Description |
|---|---|---|
| Budget Code | 9 | General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors. |
| Fund Code | SF | Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point. |
| Materiel Management Aggregation Code | SX | SX:AF SICA RESIDUAL MMAC-OC-ALC |
| Price Validation | V | The current standard price has been validated.
|
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DF | Department of the Air Force |
| Service Organization | F | U.S. Air Force |
| Reparability | N | Stock Fund (except Munitions) |
| Acquisition Advice Codes | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
Q EA : Each |
| 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 | D | DoD INTEGRATED MATERIEL-MANAGED, STOCKED, AND ISSUED # Issue, transfer, or shipment is not subject to specialized controls other than those imposed by the Integrated Materiel Manager/Service supply policy. 1. The item is centrally managed, stocked, and issued. 2. Requisitions must contain the fund citation required to acquire the item. Requisitions will be submitted in accordance with Integrated Materiel Manager(IMM)/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
Q EA : Each |