The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-550-6516, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 7 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-550-6516 |
| Primary Part Number | 21879 |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids |
| Status | ACTIVE |
| Drive Type | SLOTTED |
| Surface Treatment Document and Classification | QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material | STEEL OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Stud Head Height | 0.285 INCHES NOMINAL IN |
| Diameter | 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Turnlock Stud Head Style | FLAT FILLISTER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 21879 PRIMARY | Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA) |
NSN 5325-01-550-6516 is a Stud,turnlock Fastener, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5325 (No Item Name Available). Status: active.
NSN 5325-01-550-6516 has 1 cross-referenced part number: 21879 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).
There are 6 known substitutes for 5325-01-550-6516: 3110-00-144-8522, 3455-00-516-5042, 5930-00-525-0481 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 21879: Drive Type: SLOTTED; Surface Treatment Document and Classification: QQ-P-416, TYPE II, CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.