The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-188-9183, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Cfm International Inc Dba Cfm International. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-188-9183 |
| Primary Part Number | J818P060A |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Cfm International Inc Dba Cfm International |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Head Height | 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Fastener Length | 1.967 INCHES MINIMUM AND 1.987 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Thread Length | 0.931 INCHES MINIMUM AND 0.961 INCHES MAXIMUM IN |
| Material Document and Classification | C50TF13 CL-B,FSCM 07482 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.026 INCHES MINIMUM AND 1.036 INCHES MAXIMUM IN |
| Width Between Flats | 0.562 INCHES NOMINAL IN |
| Grip Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| J818P060A PRIMARY | Cfm International Inc Dba Cfm International (USA) |
NSN 5306-01-188-9183 is a Bolt,close Tolerance, manufactured by Cfm International Inc Dba Cfm International, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-188-9183 has 1 manufacturer part number on file: J818P060A (Cfm International Inc Dba Cfm International).
Key specifications for J818P060A: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Extended Washer Thickness: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Head Height: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM 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.