The Stud Assembly,turnlock Fastener, cataloged under National Stock Number 5325-00-264-2246, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5325-00-264-2246 |
| Primary Part Number | FX10-1558-3P |
| Item Name | Stud Assembly,turnlock Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | CANCELLED |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE EJECTOR SPRING |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE GROMMET |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE STUD |
| Eyelet Outside Diameter | 0.375 INCHES NOMINAL IN |
| Drive Type | CROSS RECESS |
| Material Accommodated Thickness | 0.291 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING |
| Material Document and Classification | ASTM A 322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A331 ASSN STD 2ND MATERIAL RESPONSE STUD |
| Material Document and Classification | MIL-S-5626 FED SPEC SINGLE MATERIAL RESPONSE GROMMET |
| Diameter | 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Securing Device Type | RING |
| Distance From Engaging Member to Largest Bearing Surface of Head | 0.550 INCHES NOMINAL IN |
| Turnlock Stud Head Style | FLAT COUNTERSUNK |
| Surface Treatment | CADMIUM AND CHROMATE STUD |
| Surface Treatment | PASSIVATE EJECTOR SPRING |
| Surface Treatment | CADMIUM AND CHROMATE GROMMET |
| Material | STEEL COMP 4037 STUD |
| Material | STEEL COMP 302 EJECTOR SPRING |
| Material | STEEL GROMMET |
| Stud Assembly Style | STUD ASSEMBLY |
| Eyelet Length | 0.490 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| FX10-1558-3P PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| Reference | Meaning |
|---|---|
| 11069896-1 | 5/9 Secondary reference Us Army Aviation and Missile Command |
| 5325002642246 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 4131-0001 | 5/9 Secondary reference Finnigan Corporation |
| 4131-0001 | 5/9 Secondary reference Bae Systems Information & Electronic Systems Integration Inc. |
| FX10-1558-3 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
NSN 5325-00-264-2246 is a Stud Assembly,turnlock Fastener, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5325, Fastening Devices. Status: cancelled.
NSN 5325-00-264-2246 has 1 manufacturer part number on file: FX10-1558-3P (Howmet Global Fastening Systems Inc. Div Tridair Products).
1 possible match (shared part number, not a government interchangeability claim): 5935-00-905-3528. Verify interchangeability with system specifications before substitution.
Key specifications for FX10-1558-3P: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE EJECTOR SPRING; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE GROMMET; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE STUD; Eyelet Outside Diameter: 0.375 INCHES NOMINAL 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.
NSN 5325-00-264-2246 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.