The Screw,close Tolerance, cataloged under National Stock Number 5305-01-189-7455, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-189-7455 |
| Primary Part Number | SC1786RV3-6 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Fastener Length | 0.698 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN |
| Thread Length | 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 4967,COMP 6AL-4V ASSN STD SINGLE MATERIAL RESPONSE OVERALL V |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | OVAL COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.297 INCHES MINIMUM AND 0.302 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 |
|---|---|
| AIC4040V3-06R | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| SC1786RV3-6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| AIC4040V3-06 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| LE111-0041-2306 PRIMARY | Smith and Smith Aircraft Co (USA) |
| PBF1383-2306 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 123179V3R6 | 3/2 Design control — primary reference U.S. Government activity |
| T181-2306 | 5/9 Secondary reference U.S. Government activity |
| LE111-0041-2306 | 7/2 Vendor item drawing reference The Boeing Company Div Legacy Am&m |
| T181-2306 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5305-01-189-7455 is a Screw,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-189-7455 has 5 manufacturer part numbers on file: AIC4040V3-06R (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), SC1786RV3-6 (Howmet Global Fastening Systems Inc), AIC4040V3-06 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), LE111-0041-2306 (Smith and Smith Aircraft Co), PBF1383-2306 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
Key specifications for SC1786RV3-6: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Fastener Length: 0.698 INCHES MINIMUM AND 0.728 INCHES MAXIMUM IN; Thread Length: 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN. 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.