The Receptacle,turnlock Fastener, cataloged under National Stock Number 5325-00-778-3372, 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 22 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-00-778-3372 |
| Primary Part Number | 3M304-6-9-5 |
| Item Name | Receptacle,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Countersink Angle in Deg | 100.0 |
| Receptacle Overall Length | 1.295 INCHES MAXIMUM IN |
| Receptacle Thread Size and Series/type Designator | 0.250-28 UNF |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS 3 FED SPEC 2ND TREATMENT RESPONSE STUD |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC 1ST TREATMENT RESPONSE RETAINER |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC 3RD TREATMENT RESPONSE RECEPTACLE |
| Center to Center Distance Between Mounting Holes | 0.998 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Mounting Style | COUNTERSUNK |
| Material Document and Classification | AISI C1050 ASSN STD 1ST MATERIAL RESPONSE RETAINER |
| Material Document and Classification | AMS 6322 FED STD 2ND MATERIAL RESPONSE STUD |
| Material Document and Classification | AMS 6322 FED STD 3RD MATERIAL RESPONSE RECEPTACLE |
| Turnlock Receptacle Style | TWO LUG FLOATING |
| Receptacle Width | 0.600 INCHES MAXIMUM IN |
| Turnlock Mounting Hole Diameter | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM STUD |
| Surface Treatment | CADMIUM RETAINER |
| Surface Treatment | CADMIUM RECEPTACLE |
| Receptacle Height | 0.709 INCHES MAXIMUM IN |
| Material | STEEL STUD |
| Material | STEEL COMP 1050 RETAINER |
| Material | STEEL RECEPTACLE |
| Stud Protrusion Length | 0.312 INCHES NOMINAL 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 |
|---|---|
| 007783372 | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| 1950-6-9-5 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| 195011B-6-9-5 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| 3M304-6-9-5 PRIMARY | The Boeing Company Div Defense (USA) |
| M1950-6-9-5 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| Reference | Meaning |
|---|---|
| 1950-6-9-5 | C/1 Advisory reference — outside the item-of-supply concept Alta Products Co Inc |
| 195011B-6-9-5 | 5/9 Secondary reference Sps Technologies Ltd, Tj Brooks Division |
| NS199-5A9-5 | 5/9 Secondary reference U.S. Government activity |
| 1950-6-9-5 | 5/9 Secondary reference U.S. Government activity |
| 1950-6-9-5 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 195011B-6-9-5 | 5/2 Secondary reference U.S. Government activity |
| 10119164 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 195011B-6-9-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 1950-6-9-5 | 5/9 Secondary reference U.S. Government activity |
| 195011B-6-9-5 | 5/9 Secondary reference U.S. Government activity |
| GR520AF6-9-5 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5325-00-778-3372 is a Receptacle,turnlock Fastener, manufactured by The Boeing Company Div Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-00-778-3372 has 5 manufacturer part numbers on file: 007783372 (Howmet Global Fastening Systems Inc. Div Tridair Products), 1950-6-9-5 (Fairchild Fasteners Europe - Vsd Gmbh), 195011B-6-9-5 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), 3M304-6-9-5 (The Boeing Company Div Defense), M1950-6-9-5 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok).
Key specifications for 3M304-6-9-5: Countersink Angle in Deg: 100.0; Receptacle Overall Length: 1.295 INCHES MAXIMUM IN; Receptacle Thread Size and Series/type Designator: 0.250-28 UNF; Surface Treatment Document and Classification: QQ-P-416,TYPE 1,CLASS 3 FED SPEC 2ND TREATMENT RESPONSE STUD. 22 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.