The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-381-0891, 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 17 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-381-0891 |
| Primary Part Number | H411-5-19 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.187 INCHES NOMINAL IN |
| Fastener Length | 1.611 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Features Provided | DRY FILM LUBRICANT |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.605 INCHES NOMINAL IN |
| Grip Diameter | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| H411-5-19 PRIMARY | Huck International, Inc (USA) |
| VCG0030-5-19 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC596-5-19 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF7521-5-19 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| 120978-5-19 | 3/2 Design control — primary reference U.S. Government activity |
| H411-5-19 | 5/9 Secondary reference U.S. Government activity |
| VS3133-5-19 | 3/2 Design control — primary reference U.S. Government activity |
| 5306-002-5-19 | 5/9 Secondary reference Aidc/aerospace Industrial Development Corp. Dba Aidc |
NSN 5306-01-381-0891 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-381-0891 has 4 manufacturer part numbers on file: H411-5-19 (Huck International, Inc), VCG0030-5-19 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), AIC596-5-19 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), PBF7521-5-19 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
Key specifications for H411-5-19: Head Height: 0.187 INCHES NOMINAL IN; Fastener Length: 1.611 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.438 INCHES NOMINAL IN. 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.