The Bolt,welding, cataloged under National Stock Number 5306-01-031-1322, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Ohio Nut and Bolt Co Div of Fastener Industries Inc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-031-1322 |
| Primary Part Number | RW3320 |
| Item Name | Bolt,welding |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Ohio Nut and Bolt Co Div of Fastener Industries Inc |
| Status | ACTIVE |
| Head Height | 0.143 INCHES NOMINAL IN |
| Fastener Length | 1.393 INCHES NOMINAL IN |
| Thread Length | 1.107 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZW |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | FLUSH |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY SPECIAL QUALITY CONTROL TESTING FOR MK 48 TORPEDO |
| Internal Drive Style | DOUBLE HEXAGON |
| Welding Projection Quantity | 1 BEARING SURFACE OF HEAD |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 1010 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 | Y |
| Part Number | Manufacturer |
|---|---|
| RW3320 | Ohio Nut and Bolt Co Div of Fastener Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 3017701 | 3/1 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5306-01-031-1322 is a Bolt,welding, manufactured by Ohio Nut and Bolt Co Div of Fastener Industries Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-031-1322 has 1 manufacturer part number on file: RW3320 (Ohio Nut and Bolt Co Div of Fastener Industries Inc).
Key specifications for RW3320: Head Height: 0.143 INCHES NOMINAL IN; Fastener Length: 1.393 INCHES NOMINAL IN; Thread Length: 1.107 INCHES NOMINAL IN; Criticality Code Justification: ZZZW. 14 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.