The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-193-9486, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Bsi Standards Limited. Government technical data includes 15 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 | 5306-00-193-9486 |
| Primary Part Number | A111-4G |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Bsi Standards Limited |
| Status | ACTIVE |
| Head Height | 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN |
| Fastener Length | 1.050 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN |
| Thread Length | 0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Material Document and Classification | A.111,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.400 INCHES MINIMUM AND 0.513 INCHES MAXIMUM IN |
| Width Between Flats | 0.493 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Grip Diameter | 0.3118 INCHES MINIMUM AND 0.3123 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| A111-4G PRIMARY | Bsi Standards Limited (GBR) |
NSN 5306-00-193-9486 is a Bolt,close Tolerance, manufactured by Bsi Standards Limited, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-193-9486 has 1 manufacturer part number on file: A111-4G (Bsi Standards Limited).
Key specifications for A111-4G: Head Height: 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN; Fastener Length: 1.050 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN; Thread Length: 0.537 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN; Material Document and Classification: A.111,FSCM K7766 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL. 15 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.