The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-276-6236, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-276-6236 |
| Primary Part Number | 8761111-03 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Surface Finish | 16.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Head Height | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Fastener Length | 1.300 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS2403 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN |
| Thread Length | 0.810 INCHES NOMINAL IN |
| Material Document and Classification | AMS7459 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Width Between Flats | 0.497 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 8761111-03 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 8761111-03 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 8761111-03 | 5/9 Secondary reference Mchaffie Inc |
| 8761111-03 | 5/2 Secondary reference U.S. Government activity |
| 8761111-03 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-276-6236 is a Bolt,close Tolerance, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-276-6236 has 2 manufacturer part numbers on file: 8761111-03 (Sps Technologies, Llc Dba PB Fasteners), 8761111-03 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for 8761111-03: Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Surface Finish: 16.0 MICROINCHES GRIP; Extended Washer Thickness: 0.110 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Head Height: 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN. 19 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.