The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-276-6237, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-276-6237 |
| Primary Part Number | 8761112-03 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES BEARING SURFACE OF HEAD |
| Surface Finish | 16.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Head Height | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Fastener Length | 0.920 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS2403 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Thread Length | 0.570 INCHES NOMINAL IN |
| Material Document and Classification | AMS7459 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.340 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.372 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 |
|---|---|
| 8761112-03 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| 8761112-03 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 8761112-03 | Mchaffie Inc (USA) |
| Reference | Meaning |
|---|---|
| 8761112-03 | 3/2 Design control — primary reference U.S. Government activity |
| 8761112-03 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-276-6237 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-276-6237 has 3 manufacturer part numbers on file: 8761112-03 (Sps Technologies, Llc Dba PB Fasteners), 8761112-03 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 8761112-03 (Mchaffie Inc).
Key specifications for 8761112-03: Surface Finish: 63.0 MICROINCHES BEARING SURFACE OF HEAD; Surface Finish: 16.0 MICROINCHES GRIP; Extended Washer Thickness: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN; Head Height: 0.365 INCHES MINIMUM AND 0.385 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.