The Bolt,shoulder, cataloged under National Stock Number 5306-01-513-0761, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Entwistle Company Llc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-513-0761 |
| Primary Part Number | 2498-2306 FIND NO 91 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 1.375 INCHES NOMINAL IN |
| Shoulder Length | 0.406 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.620 INCHES MINIMUM AND 0.622 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.562 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 1.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 2498-2306 FIND NO 91 PRIMARY | The Entwistle Company Llc (USA) |
| 2498-2306-91 | The Entwistle Company Llc (USA) |
NSN 5306-01-513-0761 is a Bolt,shoulder, manufactured by The Entwistle Company Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-513-0761 has 2 manufacturer part numbers on file: 2498-2306 FIND NO 91 (The Entwistle Company Llc), 2498-2306-91 (The Entwistle Company Llc).
Key specifications for 2498-2306 FIND NO 91: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 1.375 INCHES NOMINAL IN; Shoulder Length: 0.406 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.620 INCHES MINIMUM AND 0.622 INCHES MAXIMUM FIRST SHOULDER IN. 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.