The Screw,close Tolerance, cataloged under National Stock Number 5305-01-355-6952, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-355-6952 |
| Primary Part Number | VCL0009-8D28 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Fastener Length | 2.475 INCHES MINIMUM AND 2.495 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.735 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.101 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.740 INCHES MINIMUM IN |
| Grip Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE-SET RIBBED |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.100 INCHES MINIMUM AND 2.152 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.951 INCHES MINIMUM AND 1.014 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 |
|---|---|
| VCL0009-8D28 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1475-8D28 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GB510FG8D28 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 124379-8D28 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-355-6952 is a Screw,close Tolerance, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-355-6952 has 3 manufacturer part numbers on file: VCL0009-8D28 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF1475-8D28 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), GB510FG8D28 (Northrop Grumman Systems Corporation).
Key specifications for VCL0009-8D28: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 2.475 INCHES MINIMUM AND 2.495 INCHES MAXIMUM IN. 23 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.