The Bolt,ring, cataloged under National Stock Number 5306-01-323-7927, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Puritas Metal Products Inc. 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-323-7927 |
| Primary Part Number | PMP17514 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Puritas Metal Products Inc |
| Status | ACTIVE |
| Ring Stock Diameter | 0.645 INCHES MAXIMUM IN |
| Eye Stock Diameter | 1.385 INCHES NOMINAL IN |
| Ring Inside Diameter | 2.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.769 INCHES NOMINAL IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Shank Length | 0.880 INCHES NOMINAL IN |
| Style Designator | SWIVEL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Shoulder Diameter | 0.743 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Distance From Threaded End to Shank Hole Center | 0.218 INCHES NOMINAL FIRST HOLE IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 6150 OVERALL |
| Shoulder Length | 1.500 INCHES NOMINAL IN |
| 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 |
NSN 5306-01-323-7927 is a Bolt,ring, manufactured by Puritas Metal Products Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-323-7927 has 2 manufacturer part numbers on file: 391321-1 (Raytheon Company Div Rmd Strategic), PMP17514 (Puritas Metal Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 6150-01-589-6177. Verify interchangeability with system specifications before substitution.
Key specifications for PMP17514: Ring Stock Diameter: 0.645 INCHES MAXIMUM IN; Eye Stock Diameter: 1.385 INCHES NOMINAL IN; Ring Inside Diameter: 2.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.