The Bolt,machine, cataloged under National Stock Number 5306-00-568-5146, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Corporation. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-568-5146 |
| Primary Part Number | A43-342 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Head Height | 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN |
| Fastener Length | 3.516 INCHES MINIMUM AND 3.562 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BFG 305,TYPE 1,CLASS C,FSCM 83187 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.532 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-5626 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 5TH MATERIAL RESPONSE OR AMS 6300 ASSN STD 6TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.953 INCHES MINIMUM AND 2.984 INCHES MAXIMUM IN |
| Width Between Flats | 0.438 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 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 |
|---|---|
| A43-342 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| A43-342 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5306-00-568-5146 is a Bolt,machine, manufactured by Goodrich Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-568-5146 has 1 manufacturer part number on file: A43-342 (Goodrich Corporation).
Key specifications for A43-342: Head Height: 0.176 INCHES MINIMUM AND 0.186 INCHES MAXIMUM IN; Fastener Length: 3.516 INCHES MINIMUM AND 3.562 INCHES MAXIMUM IN; Surface Treatment Document and Classification: BFG 305,TYPE 1,CLASS C,FSCM 83187 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.532 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN. 17 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.