The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-412-6394, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-412-6394 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Width Across Flats | 0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 5.923 INCHES MINIMUM AND 5.953 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.662 INCHES MINIMUM IN |
| Hardness Rating | 34.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | ROUND INTERNAL HEXAGON |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | BEVEL-CONICAL |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Head Diameter | 0.639 INCHES MINIMUM AND 0.649 INCHES MAXIMUM 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 |
|---|---|
| 02-0067-6-95 | 5/1 Secondary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| 21212-33 | 5/9 Secondary reference Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace |
| MS20006H84 | 2/2 Government specification standardization U.S. Government activity |
| 02-0067-4-12 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5306-01-412-6394 is a Bolt,internal Wrenching, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-417-9853. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-01-412-6394: Width Across Flats: 0.313 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN; Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 5.923 INCHES MINIMUM AND 5.953 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 22 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.