The Bolt,machine, cataloged under National Stock Number 5306-01-321-4101, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Federal Manufacturing Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-321-4101 |
| Primary Part Number | BACB30SX12-0 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Federal Manufacturing Corp |
| Status | ACTIVE |
| Head Height | 7.82 MILLIMETERS MINIMUM AND 8.18 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 4H |
| Fastener Length | 24.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.5 |
| Thread Length | 21.0 MILLIMETERS MINIMUM AND 24.0 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 18.67 MILLIMETERS MINIMUM AND 19.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| BACB30SX12-0 | Federal Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| BACB30SX12-0 | 7/2 Vendor item drawing reference U.S. Government activity |
| VS3078-12-0 | 5/2 Secondary reference U.S. Government activity |
| 74597-M1215-0 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-321-4101 is a Bolt,machine, manufactured by Federal Manufacturing Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-321-4101 has 1 manufacturer part number on file: BACB30SX12-0 (Federal Manufacturing Corp).
Key specifications for BACB30SX12-0: Head Height: 7.82 MILLIMETERS MINIMUM AND 8.18 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 4H; Fastener Length: 24.0 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT 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.