The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-00-288-3090, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 18 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-288-3090 |
| Primary Part Number | 3M304C5-7-3 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Receptacle Overall Length | 1.140 INCHES MAXIMUM IN |
| Receptacle Thread Size and Series/type Designator | 190-32 UNF |
| Center to Center Distance Between Mounting Holes | 0.875 INCHES NOMINAL IN |
| Mounting Style | PLAIN W/MOUNTING HOLE |
| Material Document and Classification | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5735 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5737 ASSN STD 1ST MATERIAL RESPONSE BARREL |
| Material Document and Classification | AMS 5525 ASSN STD 2ND MATERIAL RESPONSE RETAINER |
| Material Document and Classification | AMS 5735 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5737 ASSN STD 3RD MATERIAL RESPONSE STUD |
| Turnlock Receptacle Style | RECEPTACLE |
| Receptacle Width | 0.500 INCHES MAXIMUM IN |
| Turnlock Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE RETAINER |
| Surface Treatment | SILVER STUD |
| Surface Treatment | PASSIVATE BARREL |
| Precious Material and Location | STUD SILVER |
| Receptacle Height | 0.555 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING STUD |
| Material | STEEL CORROSION RESISTING RETAINER |
| Material | STEEL CORROSION RESISTING BARREL |
| 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 |
|---|---|
| 3M304C5-7-3 PRIMARY | The Boeing Company Div Defense (USA) |
| 195012-5-7-3 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| M195012-5-7-3 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| 3M304C5-7-3 | 5/9 Secondary reference U.S. Government activity |
| 195012-5-7-3 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Voi-Shan Products |
| 195012-5-7-3 | 5/2 Secondary reference U.S. Government activity |
| M1950-5-7-3 | 5/9 Secondary reference Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok |
NSN 5325-00-288-3090 is a Receptacle,turnlock Fastener, manufactured by The Boeing Company Div Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-288-3090 has 3 manufacturer part numbers on file: 3M304C5-7-3 (The Boeing Company Div Defense), 195012-5-7-3 (Howmet Global Fastening Systems Inc. Div Tridair Products), M195012-5-7-3 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
Key specifications for 3M304C5-7-3: Receptacle Overall Length: 1.140 INCHES MAXIMUM IN; Receptacle Thread Size and Series/type Designator: 190-32 UNF; Center to Center Distance Between Mounting Holes: 0.875 INCHES NOMINAL IN; Mounting Style: PLAIN W/MOUNTING HOLE. 18 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.