The Bolt,u, cataloged under National Stock Number 5306-00-411-6522, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Pdi Ground Support Systems, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-411-6522 |
| Primary Part Number | 51-1728 |
| Item Name | Bolt,u |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Pdi Ground Support Systems, Inc. |
| Status | ACTIVE |
| Inside Distance Between Shanks | 2.031 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.500 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN |
| Hardness Rating | 215.0 BRINELL STANDARD MINIMUM AND 255.0 BRINELL STANDARD MAXIMUM OVERALL |
| Distance From Inside Center of Bend to Bolt End | 4.000 INCHES MINIMUM AND 4.062 INCHES MAXIMUM IN |
| Style Designator | SQUARE BEND |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1035 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 51-1728 PRIMARY | Pdi Ground Support Systems, Inc. (USA) |
NSN 5306-00-411-6522 is a Bolt,u, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-411-6522 has 1 manufacturer part number on file: 51-1728 (Pdi Ground Support Systems, Inc.).
Key specifications for 51-1728: Inside Distance Between Shanks: 2.031 INCHES MINIMUM AND 2.062 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.500 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN; Hardness Rating: 215.0 BRINELL STANDARD MINIMUM AND 255.0 BRINELL STANDARD MAXIMUM OVERALL. 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.