The Bolt,internally Relieved Body, cataloged under National Stock Number 5306-00-076-5690, 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 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-076-5690 |
| Primary Part Number | 123AMM12136-5 |
| Item Name | Bolt,internally Relieved Body |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.187 INCHES NOMINAL IN |
| Fastener Length | 1.750 INCHES NOMINAL IN |
| Concentric Hole Depth | 1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Thread Length | 0.520 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.061 INCHES MINIMUM AND 0.066 INCHES MAXIMUM FIRST HOLE IN |
| Style Designator | COUNTERBORE UNTHREADED |
| Material Document and Classification | MIL-S-5000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.437 INCHES IN |
| Counterbore Depth | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Head Style | ROUND W/WRENCH FLATS |
| Thread Direction | RIGHT-HAND |
| Counterbore Diameter | 0.125 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Width Between Flats | 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN |
| Concentric Hole Diameter | 0.092 INCHES MINIMUM AND 0.097 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4340 OVERALL |
| Shoulder Length | 1.230 INCHES NOMINAL IN |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.625 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.937 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 |
|---|---|
| 123AMM12136-5 | D F P Manufacturing Corp Dba D F P (USA) |
| 123AMM12136-5 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123AMM12136-5 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5306-00-076-5690 is a Bolt,internally Relieved Body, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-076-5690 has 2 manufacturer part numbers on file: 123AMM12136-5 (D F P Manufacturing Corp Dba D F P), 123AMM12136-5 (Northrop Grumman Systems Corporation).
Key specifications for 123AMM12136-5: Head Height: 0.187 INCHES NOMINAL IN; Fastener Length: 1.750 INCHES NOMINAL IN; Concentric Hole Depth: 1.718 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Thread Length: 0.520 INCHES NOMINAL IN. 25 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.