The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-462-2190, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-462-2190 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Head Height | 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Fastener Length | 4.000 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.921 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN |
| Thread Length | 3.000 INCHES MINIMUM AND 3.062 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.000 INCHES NOMINAL IN |
| Width Between Flats | 0.620 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN |
| Grip Diameter | 0.6163 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 11 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 524680-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-462-2190 is a Bolt,close Tolerance, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-462-2190: Extended Washer Thickness: 0.255 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN; Head Height: 0.094 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Fastener Length: 4.000 INCHES NOMINAL IN; Extended Washer Diameter: 0.921 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN. 16 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.