The Stud,turnlock Fastener, cataloged under National Stock Number 5325-01-310-1641, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-310-1641 |
| Primary Part Number | FIT7078R5C210E |
| Item Name | Stud,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| Status | ACTIVE |
| Drive Type | SLOTTED |
| Material Accommodated Thickness | 0.191 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Diameter | 0.560 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FILLISTER |
| Stud Shank Major Diameter | 0.262 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 OVERALL |
| Grip Length | 0.397 INCHES MINIMUM AND 0.407 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FIT7078R5C210E PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 112035-210 | Monadnock Company, the Dba Lisi Aerospace (USA) |
| TST3M472R5C210E | Trico Manufacturing Inc. (USA) |
| Reference | Meaning |
|---|---|
| ST3M472RC210E | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5325-01-310-1641 is a Stud,turnlock Fastener, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-310-1641 has 3 manufacturer part numbers on file: FIT7078R5C210E (Fastener Innovation Technology, Inc. Dba F I T), 112035-210 (Monadnock Company, the Dba Lisi Aerospace), TST3M472R5C210E (Trico Manufacturing Inc.).
Key specifications for FIT7078R5C210E: Drive Type: SLOTTED; Material Accommodated Thickness: 0.191 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN; Turnlock Stud Shank Style: STUD SHANK; Diameter: 0.560 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.