The Screw,shoulder, cataloged under National Stock Number 5305-00-298-2703, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-298-2703 |
| Primary Part Number | 303331 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL OVERALL |
| Thread Quantity Per Inch | 32 |
| Shoulder Diameter | 0.1871 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM FIRST SHOULDER IN |
| Head Style | FLAT CHAMFER |
| Thread Class | 2A A |
| Head Height | 0.094 INCHES NOMINAL IN |
| Thread Length | 0.188 INCHES MINIMUM IN |
| Internal Drive Style | SLOT |
| Fastener Length | 0.344 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Head Diameter | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Shoulder Length | 0.094 INCHES NOMINAL FIRST SHOULDER IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 303331 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5305-00-298-2703 is a Screw,shoulder, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-298-2703 has 1 cross-referenced part number: 303331 (Lockheed Martin Corporation Div Rms - Mitchel Field).
There are 4 known substitutes for 5305-00-298-2703: 5365-00-580-3815, 5950-00-647-6961, 5905-00-837-6905 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 303331: Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material: STEEL OVERALL; Thread Quantity Per Inch: 32; Shoulder Diameter: 0.1871 INCHES MINIMUM AND 0.1874 INCHES MAXIMUM FIRST SHOULDER IN. 15 total characteristics are documented in the Federal Logistics Information System.