The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-01-005-2280, 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 28 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-005-2280 |
| Primary Part Number | 160D136013-1 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.320 INCHES NOMINAL IN |
| Fastener Length | 4.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-C-320 CL 2A FED SPEC SINGLE TREATMENT RESPONSE GRIP A |
| Surface Treatment Document and Classification | MIL-C-8837 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | MIL-C-8837 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE THREADS |
| Thread Length | 0.665 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES NOMINAL FIRST HOLE IN |
| Criticality Code Justification | CQBC |
| Style Designator | COUNTERBORE UNTHREADED |
| Material Document and Classification | AMS 6419 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Counterbore Depth | 3.400 INCHES NOMINAL IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.687 INCHES NOMINAL IN |
| Width Between Flats | 1.687 INCHES NOMINAL IN |
| Shoulder Diameter | 1.1225 INCHES MINIMUM AND 1.1235 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.562 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CHROMIUM GRIP |
| Surface Treatment | CADMIUM HEAD |
| Minimum Tensile Strength | 270000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Shoulder Length | 3.510 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 4.125 INCHES NOMINAL FIRST HOLE IN |
| 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 |
|---|---|
| 160D136013-1 | Nassau Tool Works, Inc (USA) |
| 160D136013-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 160D136013-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5306-01-005-2280 is a Bolt,internally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-005-2280 has 2 manufacturer part numbers on file: 160D136013-1 (Nassau Tool Works, Inc), 160D136013-1 (Northrop Grumman Systems Corporation).
Key specifications for 160D136013-1: Head Height: 0.320 INCHES NOMINAL IN; Fastener Length: 4.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-C-320 CL 2A FED SPEC SINGLE TREATMENT RESPONSE GRIP A; Surface Treatment Document and Classification: MIL-C-8837 TY 2 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE HEAD. 28 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.