The Nut,round,special, cataloged under National Stock Number 5310-00-522-4165, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 1 specification, 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 | 5310-00-522-4165 |
| Primary Part Number | 5224165 |
| Item Name | Nut,round,special |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| General Characteristics Item Description | BRONZE QQ-B-728 CLASS A,3.250 IN. DIA,1.625 IN. THK,TWO 0.391 IN. DIA HOLES 0.380 IN. DEEP,NUT SURFACE,ONE 0.375-24 UNF 3B THD,0.340 IN. DEEP ON PERIPHERY,1.625-2 ACME 4G LEFT HAND THD THRU CENTER,3.250-16 UN-3A THD ON OUTSIDE DIA A |
| 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 |
|---|---|
| 5224165 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-00-522-4165 is a Nut,round,special, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-522-4165 has 1 manufacturer part number on file: 5224165 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 5224165: General Characteristics Item Description: BRONZE QQ-B-728 CLASS A,3.250 IN. DIA,1.625 IN. THK,TWO 0.391 IN. DIA HOLES 0.380 IN. DEEP,NUT SURFACE,ONE 0.375-24 UNF 3B THD,0.340 IN. DEEP ON PERIPHERY,1.625-2 ACME 4G LEFT HAND THD THRU CENTER,3.250-16 UN-3A THD ON OUTSIDE DIA A. 1 specification is 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.