The Bolt,machine, cataloged under National Stock Number 5306-01-201-0438, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Propulsion Systems, Inc.. Government technical data includes 13 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 | 5306-01-201-0438 |
| Primary Part Number | 13377-A |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Propulsion Systems, Inc. |
| Status | ACTIVE |
| Extended Washer Thickness | 2.062 INCHES NOMINAL IN |
| Head Height | 1.312 INCHES NOMINAL IN |
| Fastener Length | 4.250 INCHES NOMINAL IN |
| Extended Washer Diameter | 2.562 INCHES NOMINAL IN |
| Thread Length | 2.187 INCHES NOMINAL IN |
| Nominal Thread Diameter | 1.375 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.812 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | STEEL OVERALL |
| Thread Series Designator | UN |
| 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 |
|---|---|
| 13377-A PRIMARY | Propulsion Systems, Inc. (USA) |
NSN 5306-01-201-0438 is a Bolt,machine, manufactured by Propulsion Systems, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-201-0438 has 1 manufacturer part number on file: 13377-A (Propulsion Systems, Inc.).
Key specifications for 13377-A: Extended Washer Thickness: 2.062 INCHES NOMINAL IN; Head Height: 1.312 INCHES NOMINAL IN; Fastener Length: 4.250 INCHES NOMINAL IN; Extended Washer Diameter: 2.562 INCHES NOMINAL IN. 13 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.