The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-445-3449, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-445-3449 |
| Primary Part Number | S156A |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Head Height | 0.234 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Material | STEEL OVERALL |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 16 |
| Thread Direction | RIGHT-HAND |
| Head Style | HEXAGON |
| Thread Class | 2A A |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | SAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OR SAE,GR 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-445-3449 is a Screw,cap,hexagon Head, manufactured by Cummins Inc., classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-445-3449 has 2 cross-referenced part numbers: S156A (Cummins Inc.), 25118 (Twg Canada Consolidated Inc).
There are 5 known substitutes for 5305-00-445-3449: 2915-00-508-5308, 5950-00-512-0148, 6750-01-016-2536 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for S156A: Head Height: 0.234 INCHES NOMINAL IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Nominal Thread Diameter: 0.375 INCHES IN; Material: STEEL OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.