The Fastener Assembly,turnlock, cataloged under National Stock Number 5325-01-175-2185, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-175-2185 |
| Primary Part Number | FX10-1555-3P |
| Item Name | Fastener Assembly,turnlock |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Receptacle Overall Length | 1.135 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Drive Type | CROSS RECESS |
| Material Accommodated Thickness | 0.291 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Turnlock Stud Shank Style | STUD SHANK |
| Center to Center Distance Between Mounting Holes | 0.873 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Mounting Style | PLAIN W/MOUNTING HOLE |
| Material Document and Classification | 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| Diameter | 0.525 INCHES MAXIMUM IN |
| Turnlock Receptacle Style | RECEPTACLE |
| Securing Device Type | RING |
| Specification/standard Data | 81349-MIL-F-5591 GOVERNMENT SPECIFICATION |
| Receptacle Width | 0.594 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 2 TYPE AND B CLASS AND 3 SIZE |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Turnlock Mounting Hole Diameter | 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN |
| Stud Shank Major Diameter | 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Receptacle Height | 0.385 INCHES NOMINAL IN |
| Material | STEEL COMP 1010 OR STEEL COMP 1030 OVERALL |
| Grip Length | 0.485 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 |
|---|---|
| FX10-1555-3P PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| FX10-1555-3P | Fairchild Fasteners Europe - Camloc Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| MIL-F-5591 | 3/1 Design control — primary reference U.S. Government activity |
| MIL-F-5591 | 5/9 Secondary reference U.S. Government activity |
NSN 5325-01-175-2185 is a Fastener Assembly,turnlock, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-175-2185 has 2 manufacturer part numbers on file: FX10-1555-3P (Howmet Global Fastening Systems Inc. Div Tridair Products), FX10-1555-3P (Fairchild Fasteners Europe - Camloc Gmbh).
Key specifications for FX10-1555-3P: Receptacle Overall Length: 1.135 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Drive Type: CROSS RECESS; Material Accommodated Thickness: 0.291 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN. 21 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.