The Bolt,eccentric Head, cataloged under National Stock Number 5306-01-381-0278, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-381-0278 |
| Primary Part Number | 438-6404470 FIND 45 |
| Item Name | Bolt,eccentric Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.800 INCHES NOMINAL IN |
| Fastener Length | 2.600 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | SPADE |
| Head Length | 1.000 INCHES NOMINAL IN |
| Width Between Flats | 0.240 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 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 |
|---|---|
| 438-6404470 FIND 45 PRIMARY | Naval Sea Systems Command (USA) |
| DF4057-488 FIND 45 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 6404470 FIND 45 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 438-6404470 FIN | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5306-01-381-0278 is a Bolt,eccentric Head, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-381-0278 has 3 manufacturer part numbers on file: 438-6404470 FIND 45 (Naval Sea Systems Command), DF4057-488 FIND 45 (Huntington Ingalls Inc Div Newport News Shipbuilding), 6404470 FIND 45 (Naval Sea Systems Command).
Key specifications for 438-6404470 FIND 45: Head Height: 0.800 INCHES NOMINAL IN; Fastener Length: 2.600 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN; Head Style: SPADE. 10 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.