The Bolt,machine, cataloged under National Stock Number 5306-00-261-3388, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5306-00-261-3388 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.456 INCHES MINIMUM AND 0.481 INCHES MAXIMUM IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Hole Configuration Style | HEXAGON FLATS |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 1035 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Hole Type | DRILLED |
| Hole Diameter | 0.096 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 |
| Reference | Meaning |
|---|---|
| D617 | 5/9 Secondary reference Koehring Co Lorain Div |
| 364V0002 | 3/9 Design control — primary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
| D617 | 5/9 Secondary reference Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co |
NSN 5306-00-261-3388 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
3 possible matches (shared part number, not a government interchangeability claim): 2920-00-561-8376, 6625-00-581-2290, 5915-01-023-5459. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-261-3388: Head Height: 0.456 INCHES MINIMUM AND 0.481 INCHES MAXIMUM IN; Fastener Length: 1.500 INCHES NOMINAL IN; Thread Length: 0.875 INCHES MINIMUM IN; Hole Configuration Style: HEXAGON FLATS. 17 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.