The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-709-8286, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-709-8286 |
| Primary Part Number | 2-20003-1 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN |
| Head Height | 0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN |
| Fastener Length | 4.242 INCHES MINIMUM AND 4.272 INCHES MAXIMUM IN |
| Extended Washer Diameter | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Concentric Hole Depth | 2.500 INCHES NOMINAL IN |
| Thread Length | 1.114 INCHES MINIMUM AND 1.307 INCHES MAXIMUM IN |
| Style Designator | CONCENTRIC HOLE UNTHREADED |
| Material Document and Classification | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.056 INCHES MINIMUM AND 1.066 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.500 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 18000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2-20003-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 2-20003-1 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 2-20003-1 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5306-00-709-8286 is a Bolt,internally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-709-8286 has 1 manufacturer part number on file: 2-20003-1 (Northrop Grumman Systems Corporation).
2 possible matches (shared part number, not a government interchangeability claim): 5930-00-920-5253, 4820-01-601-0484. Verify interchangeability with system specifications before substitution.
Key specifications for 2-20003-1: Extended Washer Thickness: 0.212 INCHES MINIMUM AND 0.232 INCHES MAXIMUM IN; Head Height: 0.913 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN; Fastener Length: 4.242 INCHES MINIMUM AND 4.272 INCHES MAXIMUM IN; Extended Washer Diameter: 1.615 INCHES MINIMUM AND 1.625 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.