The Screw,machine, cataloged under National Stock Number 5305-00-174-3926, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-174-3926 |
| Primary Part Number | SP21 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Thread Quantity Per Inch | 32 |
| Head Diameter | 0.250 INCHES NOMINAL IN |
| Head Height | 0.125 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Thread Series Designator | UNS |
| Internal Drive Style | SLOT |
| Thread Length | 0.281 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN |
| Screw Material | COPPER ALLOY 482 |
| Screw Material Document and Classification | QQ-B-637,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-639,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE |
| Nominal Thread Diameter | 0.156 INCHES IN |
| Head Style | FLAT CHAMFER |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 63795PC8 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| SP21 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 51313PC13 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 44364PC29 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 51303PC22 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 5305-00-174-3926 is a Screw,machine, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5305 (No Item Name Available). Status: active.
NSN 5305-00-174-3926 has 5 cross-referenced part numbers: 63795PC8 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), SP21 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 51313PC13 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 44364PC29 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 51303PC22 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
There are 6 known substitutes for 5305-00-174-3926: 2930-00-200-8138, 5970-00-238-6596, 5905-00-824-3594 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for SP21: Thread Quantity Per Inch: 32; Head Diameter: 0.250 INCHES NOMINAL IN; Head Height: 0.125 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 12 total characteristics are documented in the Federal Logistics Information System.