The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-775-3588, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 18 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 | 5306-00-775-3588 |
| Primary Part Number | 223997-97 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) CONCENTRIC HOLE |
| Concentric Hole Depth | 1.000 INCHES NOMINAL IN |
| Thread Length | 2.000 INCHES MAXIMUM IN |
| Threads Per Inch | 16 CONCENTRIC HOLE |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES CONCENTRIC HOLE IN |
| Width Between Flats | 1.000 INCHES NOMINAL IN |
| Internal Thread Class | 2B OVERALL |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 303 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 |
|---|---|
| 223997-97 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
NSN 5306-00-775-3588 is a Bolt,internally Relieved Body, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-775-3588 has 1 manufacturer part number on file: 223997-97 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
Key specifications for 223997-97: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 2.000 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC) CONCENTRIC HOLE; Concentric Hole Depth: 1.000 INCHES NOMINAL IN. 18 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.