The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-344-3595, 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 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-344-3595 |
| Primary Part Number | 556441-1 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| Head Height | 0.187 INCHES NOMINAL IN |
| Fastener Length | 3.110 INCHES NOMINAL IN |
| Distance From Centerline to Flat | 0.724 INCHES MINIMUM AND 0.734 INCHES MAXIMUM IN |
| Concentric Hole Depth | 2.323 INCHES MINIMUM AND 2.327 INCHES MAXIMUM IN |
| Thread Length | 0.783 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN |
| Style Designator | COUNTERBORE UNTHREADED |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Counterbore Depth | 0.500 INCHES NOMINAL IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.749 INCHES MINIMUM AND 0.751 INCHES MAXIMUM IN |
| Shoulder Diameter | 1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.500 INCHES MINIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 4340 OVERALL |
| Shoulder Length | 1.823 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN |
| Thread Series Designator | UNF |
| Head Diameter | 1.750 INCHES NOMINAL IN |
| 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 |
|---|---|
| 556441-1 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 556441-1 | 3/9 Design control — primary reference Goodrich Corp Dba Goodrich Corp |
NSN 5306-00-344-3595 is a Bolt,internally Relieved Body, manufactured by Goodrich Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-344-3595 has 1 manufacturer part number on file: 556441-1 (Goodrich Corporation).
Key specifications for 556441-1: Head Height: 0.187 INCHES NOMINAL IN; Fastener Length: 3.110 INCHES NOMINAL IN; Distance From Centerline to Flat: 0.724 INCHES MINIMUM AND 0.734 INCHES MAXIMUM IN; Concentric Hole Depth: 2.323 INCHES MINIMUM AND 2.327 INCHES MAXIMUM IN. 19 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.