The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-01-443-9154, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Monadnock Company, the Dba Lisi Aerospace. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-443-9154 |
| Primary Part Number | 1126015-3 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Monadnock Company, the Dba Lisi Aerospace |
| Status | ACTIVE |
| Eyelet Outside Diameter | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Material Accommodated Thickness | 0.090 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM-A-228 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| Material Document and Classification | ASTM-A-228 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN |
| Material Document and Classification | ASTM-A-547 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A-331 ASSN STD 1ST MATERIAL RESPONSE OR AMS6300 ASSN STD 1ST MATERIAL RESPONSE OR ASTM-A-304 ASSN STD 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE STUD |
| Material Document and Classification | ASTM-A-684 ASSN STD 1ST MATERIAL RESPONSE OR QQ-W-470 FED SPEC 2ND MATERIAL RESPONSE OR ASTM-A-109 ASSN STD 2ND MATERIAL RESPONSE EYELET |
| Diameter | 0.500 INCHES NOMINAL IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.820 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Material | STEEL EJECTOR SPRING |
| Material | STEEL PIN |
| Material | STEEL COMP 1050 OR STEEL COMP 1009 EYELET |
| Material | STEEL COMP 4037 AND STEEL COMP 1010 AND STEEL COMP 8740 STUD |
| Stud Assembly Style | STUD ASSEMBLY |
| 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 |
|---|---|
| 1126015-3 PRIMARY | Monadnock Company, the Dba Lisi Aerospace (USA) |
| Reference | Meaning |
|---|---|
| EF603-3 | 7/2 Vendor item drawing reference Leonardo Uk Limited (aw/eh101) |
NSN 5325-01-443-9154 is a Stud Assembly,turnlock Fastener, manufactured by Monadnock Company, the Dba Lisi Aerospace, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-443-9154 has 1 manufacturer part number on file: 1126015-3 (Monadnock Company, the Dba Lisi Aerospace).
Key specifications for 1126015-3: Eyelet Outside Diameter: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Material Accommodated Thickness: 0.090 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN; Material Document and Classification: ASTM-A-228 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING; Material Document and Classification: ASTM-A-228 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN. 14 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.