The Setscrew, cataloged under National Stock Number 5305-00-521-8650, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 13 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-521-8650 |
| Primary Part Number | SMB187057 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir |
| Status | ACTIVE |
| Thread Length | 0.281 INCHES MINIMUM IN |
| Internal Drive Style | SLOT |
| Material | STEEL OVERALL |
| Surface Treatment | PHOSPHATE OVERALL |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Series Designator | UNF |
| Head Style | HEADLESS (SETSCREW) |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Point Style | FLAT |
| Fastener Length | 0.687 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5305-00-521-8650 is a Setscrew, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-521-8650 has 2 cross-referenced part numbers: SMB187057 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 55139 (Kleinschmidt Inc).
There are 4 known substitutes for 5305-00-521-8650: 2910-00-063-7850, 5990-00-115-5851, 5330-00-139-7449 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for SMB187057: Thread Length: 0.281 INCHES MINIMUM IN; Internal Drive Style: SLOT; Material: STEEL OVERALL; Surface Treatment: PHOSPHATE OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.