The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-309-1521, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Warn Industries, Inc. Dba Warn Div Warn Industries. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-309-1521 |
| Primary Part Number | 15603 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Warn Industries, Inc. Dba Warn Div Warn Industries |
| Status | ACTIVE |
| Thread Quantity Per Inch | 20 |
| Internal Drive Style | HEXAGON |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL OVERALL |
| Surface Treatment | ZINC OR CADMIUM OVERALL |
| Material Document and Classification | SAE GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Class | 2A A |
| Fastener Length | 3.000 INCHES NOMINAL IN |
| Head Diameter | 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Style | FLAT CHAMFER |
| Width Across Flats | 0.188 INCHES NOMINAL IN |
| Head Height | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Thread Length | 2.860 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 15603 | Warn Industries, Inc. Dba Warn Div Warn Industries (USA) |
| 703-2298086 PIECE 11 | Naval Ship Systems Command (USA) |
| 2155W | Lake Region Development Co Inc Bradford Machine Tool Div (USA) |
| 15603 | Warn Industries Inc (USA) |
NSN 5305-01-309-1521 is a Screw,cap,socket Head, manufactured by Warn Industries, Inc. Dba Warn Div Warn Industries, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-01-309-1521 has 4 cross-referenced part numbers: 15603 (Warn Industries, Inc. Dba Warn Div Warn Industries), 703-2298086 PIECE 11 (Naval Ship Systems Command), 2155W (Lake Region Development Co Inc Bradford Machine Tool Div), 15603 (Warn Industries Inc).
There are 8 known substitutes for 5305-01-309-1521: 5355-00-207-5653, 4810-00-373-7553, 5975-00-994-4684 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 15603: Thread Quantity Per Inch: 20; Internal Drive Style: HEXAGON; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL OVERALL. 15 total characteristics are documented in the Federal Logistics Information System.