The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-641-0377, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5325-00-641-0377 |
| Primary Part Number | GS521B5 |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | CANCELLED |
| Material Accommodated Thickness | 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN |
| Drive Type | SLOTTED |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Eyelet Length | 0.322 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-+-416,TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Diameter | 0.244 INCHES MINIMUM AND 0.256 INCHES MAXIMUM IN |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.581 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Outside Diameter | 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 0163465L00 | Mbda France (FRA) |
| G800581-5 5-8INCHESL0NG | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| G800581-5 5-8INCHESL0NG | American Telephone and Telegraph Co (USA) |
| 2700-5 | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| 373MS017P005 | Raytheon Company Dba Raytheon Co (USA) |
| 58A122C744-1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 971201-5 | Raytheon Company Dba Raytheon (USA) |
| 1484485PC1 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| GS521B5 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 2700-05 | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| G800581-5 5-8INCHESL0NG | Lucent Technologies Inc Dba Federal Marketing Group (USA) |
| G800581-5 5-8INCHESL0NG | Lucent Technologies Inc Corporate Headquarters (USA) |
| G800581-5 5-8INCHESL0NG | At and T Corp (USA) |
| 10605975-5 | Us Army Aviation and Missile Command (USA) |
| 2700-5 PRIMARY | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| 2700-5 5-8INCHESL0NG | Howmet Global Fastening Systems Inc Div Camloc Products (USA) |
| NAS 55131-105 | Airbus Operations (FRA) |
NSN 5325-00-641-0377 is a Stud Assembly,turnlock Fastener, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5325 (No Item Name Available). Status: cancelled.
NSN 5325-00-641-0377 has 17 cross-referenced part numbers: 0163465L00 (Mbda France), G800581-5 5-8INCHESL0NG (Howmet Global Fastening Systems Inc Div Camloc Products), G800581-5 5-8INCHESL0NG (American Telephone and Telegraph Co), 2700-5 (Fairchild Fasteners Europe - Camloc Gmbh), 373MS017P005 (Raytheon Company Dba Raytheon Co) and 12 more.
There are 12 known substitutes for 5325-00-641-0377: 5306-00-276-9567, 5365-00-634-9032, 6150-01-111-1717 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for GS521B5: Material Accommodated Thickness: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN; Drive Type: SLOTTED; Turnlock Stud Head Style: FLAT COUNTERSUNK; Eyelet Length: 0.322 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 5325-00-641-0377 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.