The Stud,turnbutton Fastener, cataloged under National Stock Number 5325-00-281-4877, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Trw Assemblies and Fasteners Group. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5325-00-281-4877 |
| Primary Part Number | B18 |
| Item Name | Stud,turnbutton Fastener |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Trw Assemblies and Fasteners Group |
| Status | CANCELLED |
| Center to Center Distance Between Stud Holes | 0.781 INCHES NOMINAL IN |
| Stud Hole Diameter | 0.156 INCHES NOMINAL IN |
| Button Thickness | 0.290 INCHES NOMINAL IN |
| Turnbutton Stud Style | SCREW BASE |
| Height | 0.590 INCHES NOMINAL IN |
| Button Width | 0.438 INCHES NOMINAL IN |
| Base Width | 0.500 INCHES NOMINAL IN |
| Socket Accommodated Quantity | 1 |
| Material | COPPER ALLOY PIN |
| Base Length | 1.156 INCHES NOMINAL IN |
| Fabrication Method | STAMPED |
| Surface Treatment | ENAMEL OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 5325-00-281-4877 is a Stud,turnbutton Fastener, manufactured by Trw Assemblies and Fasteners Group, classified under FSC 5325 (No Item Name Available). Status: cancelled.
NSN 5325-00-281-4877 has 5 cross-referenced part numbers: B18 (Trw Assemblies and Fasteners Group), B18 (Monadnock Company, the Dba Lisi Aerospace), 818 (Monadnock Company, the Dba Lisi Aerospace), XB79312 (Trw Assemblies and Fasteners Group), 818 (Trw Assemblies and Fasteners Group).
There are 11 known substitutes for 5325-00-281-4877: 3455-00-250-0765, 4730-00-289-5924, 5365-00-300-9641 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for B18: Center to Center Distance Between Stud Holes: 0.781 INCHES NOMINAL IN; Stud Hole Diameter: 0.156 INCHES NOMINAL IN; Button Thickness: 0.290 INCHES NOMINAL IN; Turnbutton Stud Style: SCREW BASE. 12 total characteristics are documented in the Federal Logistics Information System.
NSN 5325-00-281-4877 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.