The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-080-0679, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-080-0679 |
| Primary Part Number | AOL4166-615 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners |
| Status | ACTIVE |
| Width Across Flats | 0.312 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Head Height | 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TYPE 1 CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR FF-S-86 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | FF-S-86 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.3750 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OR PASSIVATE OVERALL |
| Minimum Tensile Strength | 7025 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.550 INCHES MINIMUM AND 0.562 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 |
|---|---|
| AOL4166-615 | All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners (USA) |
| AIC811-6-16 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 73573-6-16C | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 407190379 | Leonardo Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| NAS1351C6-16 | 3/2 Design control — primary reference U.S. Government activity |
| 965811-615C | 5/2 Secondary reference U.S. Government activity |
NSN 5305-01-080-0679 is a Screw,cap,socket Head, manufactured by All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-080-0679 has 4 manufacturer part numbers on file: AOL4166-615 (All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners), AIC811-6-16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 73573-6-16C (Sps Technologies, Llc Dba PB Fasteners), 407190379 (Leonardo Uk Ltd).
Key specifications for AOL4166-615: Width Across Flats: 0.312 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN; Head Height: 0.368 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TYPE 1 CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR FF-S-86 FED SPEC 2ND TREATMENT RESPONSE OVERALL. 17 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.