The O-Ring, cataloged under National Stock Number 5331-01-516-0931, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Air & Gas Tech Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-516-0931 |
| Primary Part Number | 6966538 ITEM 4 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Air & Gas Tech Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.902 INCHES MINIMUM AND 0.922 INCHES MAXIMUM 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 |
|---|---|
| 2-317&N0552-90 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 2-317&N0552-90 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| 6966538 ITEM 4 PRIMARY | Air & Gas Tech Inc (USA) |
| Reference | Meaning |
|---|---|
| 262-6966538 ITEM 4 | C/1 Advisory reference — outside the item-of-supply concept Air & Gas Tech Inc |
NSN 5331-01-516-0931 is a O-Ring, manufactured by Air & Gas Tech Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-516-0931 has 3 manufacturer part numbers on file: 2-317&N0552-90 (Parker-Hannifin Corp Div O-Ring Division), 2-317&N0552-90 (Dbr Industries, Inc. Dba Dbr Industries Inc), 6966538 ITEM 4 (Air & Gas Tech Inc).
Key specifications for 6966538 ITEM 4: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 0.902 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN; End Item Identification: COOLER;WHIDBEY ISLAND CLASS LSD. 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.