The Screw,close Tolerance, cataloged under National Stock Number 5305-01-609-3771, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Click Bond Inc. Government technical data includes 18 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-609-3771 |
| Primary Part Number | CB9350-4-16C |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Click Bond Inc |
| Status | ACTIVE |
| Fastener Length | 1.425 INCHES NOMINAL IN |
| Thread Length | 0.425 INCHES NOMINAL IN |
| Spline Major Diameter | 0.173 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.2500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.00 INCHES NOMINAL IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Color | GRAY/GREY TOP OF HEAD |
| Surface Treatment | PAINT TOP OF HEAD |
| Internal Drive Style | TORX |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | PLASTIC TOP OF HEAD |
| Material | TITANIUM ALLOY UNS R56400 FASTENER |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.449 INCHES MINIMUM AND 0.507 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 |
|---|---|
| 03A519-4-16C | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| CB9350-4-16C PRIMARY | Click Bond Inc (USA) |
NSN 5305-01-609-3771 is a Screw,close Tolerance, manufactured by Click Bond Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-609-3771 has 2 manufacturer part numbers on file: 03A519-4-16C (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), CB9350-4-16C (Click Bond Inc).
Key specifications for CB9350-4-16C: Fastener Length: 1.425 INCHES NOMINAL IN; Thread Length: 0.425 INCHES NOMINAL IN; Spline Major Diameter: 0.173 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.2500 INCHES IN. 18 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.