The Bolt,ring, cataloged under National Stock Number 5306-01-641-8557, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-641-8557 |
| Primary Part Number | 167-8446650 ITEM 4 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Ring Stock Diameter | 0.810 INCHES NOMINAL IN |
| Eye Stock Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 1.810 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.140 INCHES MINIMUM AND 0.142 INCHES MAXIMUM CONCENTRIC HOLE IN |
| Shank Length | 3.500 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED |
| Material Document and Classification | ASTM-A276, TY-316, COND-A, CF ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Distance From Center of Eye to Shank End | 4.560 INCHES NOMINAL IN |
| Distance From Threaded End to Shank Hole Center | 0.190 INCHES NOMINAL CONCENTRIC HOLE IN |
| Eye Inside Diameter | 0.630 INCHES NOMINAL IN |
| Thread Class | 2G G |
| Thread Quantity Per Inch | 6 |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | ACME |
| 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 |
|---|---|
| 167-8446650 ITEM 4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 167-8446650 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 5306-01-641-8557 is a Bolt,ring, manufactured by Naval Sea Systems Command, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-641-8557 has 1 manufacturer part number on file: 167-8446650 ITEM 4 (Naval Sea Systems Command).
Key specifications for 167-8446650 ITEM 4: Ring Stock Diameter: 0.810 INCHES NOMINAL IN; Eye Stock Diameter: 0.500 INCHES NOMINAL IN; Thread Length: 1.810 INCHES NOMINAL IN; Shank Unthreaded Hole Diameter: 0.140 INCHES MINIMUM AND 0.142 INCHES MAXIMUM CONCENTRIC HOLE IN. 16 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.