The O-Ring, cataloged under National Stock Number 5331-01-500-9523, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Insinger Machine Co. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-500-9523 |
| Primary Part Number | D2-585 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Insinger Machine Co |
| Status | ACTIVE |
| Cross-Sectional Height | 0.094 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.688 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| D2-585 PRIMARY | Insinger Machine Co (USA) |
| SK-2864 REV D ITEM 60 | Insinger Machine Co (USA) |
NSN 5331-01-500-9523 is a O-Ring, manufactured by Insinger Machine Co, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-500-9523 has 2 manufacturer part numbers on file: D2-585 (Insinger Machine Co), SK-2864 REV D ITEM 60 (Insinger Machine Co).
Key specifications for D2-585: Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 0.688 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: O-RING,CONVEYOR DRIVE SHAFT. 4 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.