The Bolt,ring, cataloged under National Stock Number 5306-01-535-1927, 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 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-535-1927 |
| Primary Part Number | PMP06531 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Puritas Metal Products Inc |
| Status | ACTIVE |
| Surface Treatment Document and Classification | ASTM B633. TYPE 2 CLASS 2 ASSN STD 1ST TREATMENT RESPONSE OR QQ-P-416, TYPE 2 CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.880 INCHES NOMINAL IN |
| Shank Length | 1.120 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED W/SHOULDER |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Shoulder Diameter | 0.690 INCHES NOMINAL IN |
| Surface Treatment | ZINC OR CADMIUM OVERALL |
| Eye Inside Diameter | 1.380 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Eye Outside Width | 1.880 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 |
|---|---|
| PMP06531 PRIMARY | Puritas Metal Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 17-2-0953-1 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 5306-01-535-1927 is a Bolt,ring, manufactured by Puritas Metal Products Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-535-1927 has 1 manufacturer part number on file: PMP06531 (Puritas Metal Products Inc).
Key specifications for PMP06531: Surface Treatment Document and Classification: ASTM B633. TYPE 2 CLASS 2 ASSN STD 1ST TREATMENT RESPONSE OR QQ-P-416, TYPE 2 CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.880 INCHES NOMINAL IN; Shank Length: 1.120 INCHES NOMINAL IN; Style Designator: ROUND, CLOSED W/SHOULDER. 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.