The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-450-4887, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Div Tridair Products. Government technical data includes 14 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 | 5306-01-450-4887 |
| Primary Part Number | CA4500-0313 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc. Div Tridair Products |
| Status | ACTIVE |
| Head Height | 0.158 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN |
| Fastener Length | 1.185 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN |
| Thread Length | 0.263 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | CROWNED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.812 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1894 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 440C LOCKING FEATURE |
| Material | STEEL FASTENER |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| CA4500-0313 PRIMARY | Howmet Global Fastening Systems Inc. Div Tridair Products (USA) |
| CA4500-0313 | Fastavia Ltd (GBR) |
NSN 5306-01-450-4887 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc. Div Tridair Products, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-450-4887 has 2 manufacturer part numbers on file: CA4500-0313 (Howmet Global Fastening Systems Inc. Div Tridair Products), CA4500-0313 (Fastavia Ltd).
Key specifications for CA4500-0313: Head Height: 0.158 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN; Fastener Length: 1.185 INCHES MINIMUM AND 1.205 INCHES MAXIMUM IN; Thread Length: 0.263 INCHES MINIMUM AND 0.314 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES IN. 14 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.