The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-336-6312, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-336-6312 |
| Primary Part Number | H411-10D24 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.350 INCHES NOMINAL IN |
| Fastener Length | 2.117 INCHES MINIMUM AND 2.147 INCHES MAXIMUM IN |
| Thread Length | 0.563 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN |
| Material Document and Classification | AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.6250 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 1.124 INCHES NOMINAL IN |
| Grip Diameter | 0.623 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| H411-10D24 PRIMARY | Huck International, Inc (USA) |
| PBF7521-10D24 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC596-10D24 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VCG0030-10D-24 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 120978-10-D24 | 3/2 Design control — primary reference U.S. Government activity |
| H411-10D24 | 5/9 Secondary reference U.S. Government activity |
| 5306-002-10D24 | 5/9 Secondary reference Aidc/aerospace Industrial Development Corp. Dba Aidc |
| VS3133-10D24 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-336-6312 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-336-6312 has 4 manufacturer part numbers on file: H411-10D24 (Huck International, Inc), PBF7521-10D24 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), AIC596-10D24 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), VCG0030-10D-24 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for H411-10D24: Head Height: 0.350 INCHES NOMINAL IN; Fastener Length: 2.117 INCHES MINIMUM AND 2.147 INCHES MAXIMUM IN; Thread Length: 0.563 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN; Material Document and Classification: AMS-6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 14 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.