NSN 5305-01-284-7159 AIC985521, AIC985-5-21, C7985521
Product Details | CLOSE TOLERANCE SCREW
5305-01-284-7159 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: AIC985521, AIC985-5-21, C7985521, C7985-5-21, VT1694F521, VT1694F5-21, 1215585A21F, 121558-5-A21F , 5305-01-284-7159, 01-284-7159, 5305012847159, 012847159
Hardware and Abrasives | Screws
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 30 AUG 1988 | 01-284-7159 | 29294 ( SCREW, CLOSE TOLERANCE ) |
Drawings & Photos | NSN 5305-01-284-7159
Demand History | NSN 5305-01-284-7159
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 121558-5-A21F | 2025-10-282 | 292 | DIBBS |
| AIC985-5-21 | 2025-10-282 | 292 | DIBBS |
| C7985-5-21 | 2025-10-282 | 292 | DIBBS |
| VT1694F5-21 | 2025-10-282 | 292 | DIBBS |
| 121558-5-A21F | 2024-10-298 | 880 | DIBBS |
| AIC985-5-21 | 2024-10-298 | 880 | DIBBS |
| C7985-5-21 | 2024-10-298 | 880 | DIBBS |
| VT1694F5-21 | 2024-10-298 | 880 | DIBBS |
| 121558-5-A21F | 2024-10-290 | 880 | DIBBS |
| AIC985-5-21 | 2024-10-290 | 880 | DIBBS |
| C7985-5-21 | 2024-10-290 | 880 | DIBBS |
| VT1694F5-21 | 2024-10-290 | 880 | DIBBS |
| 121558-5-A21F | 2024-03-73 | 306 | DIBBS |
| AIC985-5-21 | 2024-03-73 | 306 | DIBBS |
| C7985-5-21 | 2024-03-73 | 306 | DIBBS |
| VT1694F5-21 | 2024-03-73 | 306 | DIBBS |
| 121558-5-A21F | 2023-10-296 | 260 | DIBBS |
| AIC985-5-21 | 2023-10-296 | 260 | DIBBS |
| C7985-5-21 | 2023-10-296 | 260 | DIBBS |
| VT1694F5-21 | 2023-10-296 | 260 | DIBBS |
| 121558-5-A21F | 2023-04-108 | 312 | DIBBS |
| AIC985-5-21 | 2023-04-108 | 312 | DIBBS |
| C7985-5-21 | 2023-04-108 | 312 | DIBBS |
| VT1694F5-21 | 2023-04-108 | 312 | DIBBS |
| 121558-5-A21F | 2021-06-164 | 967 | DIBBS |
| AIC985-5-21 | 2021-06-164 | 967 | DIBBS |
| C7985-5-21 | 2021-06-164 | 967 | DIBBS |
| VT1694F5-21 | 2021-06-164 | 967 | DIBBS |
| 121558-5-A21F | 2021-02-57 | 906 | DIBBS |
| AIC985-5-21 | 2021-02-57 | 906 | DIBBS |
| C7985-5-21 | 2021-02-57 | 906 | DIBBS |
| VT1694F5-21 | 2021-02-57 | 906 | DIBBS |
| 121558-5-A21F | 2021-02-46 | 906 | DIBBS |
| AIC985-5-21 | 2021-02-46 | 906 | DIBBS |
| C7985-5-21 | 2021-02-46 | 906 | DIBBS |
| VT1694F5-21 | 2021-02-46 | 906 | DIBBS |
| 5305-01-284-7159 | 2009-02-48 | 3014 | DIBBS |
Cross Reference | NSN 5305-01-284-7159
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 121558-5-A21F | 80539 | SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP |
| AIC985-5-21 | 06725 | SPS TECHNOLOGIES LLC DBA AIR INDUSTRIES |
| C7985-5-21 | 27624 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| C7985-5-21 | 56878 | SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION |
| C7985-5-21 | 81755 | LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS |
| VT1694F5-21 | 06950 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
| VT1694F5-21 | 92215 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
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Technical Data | NSN 5305-01-284-7159
| Characteristic | Specifications |
|---|---|
| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.501 INCHES NOMINAL |
| FASTENER LENGTH | 1.814 INCHES NOMINAL |
| MATERIAL | STEEL COMP H11 OVERALL |
| HEAD STYLE | C50 FLAT COUNTERSUNK |
| HEAD DIAMETER | 0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| INTERNAL DRIVE STYLE | D8 TORQUE SET |
| GRIP LENGTH | 1.313 INCHES NOMINAL |
| GRIP DIAMETER | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM |
Restrictions/Controls & Freight Information | NSN 5305-01-284-7159
| 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: | 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 |
|---|---|---|
| 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 | SU | Ogden Air Logistics Center Hill AFB, UT 84056-5609 |
| 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 5305-01-284-7159
Air Force| 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. |
| Price Validation | N | The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
|
| Fund Code | SF | Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point. |
| Materiel Management Aggregation Code | WF | SU:F-16 AIR COMBAT FIGHTER |
| 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 | Z | INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |