The O-Ring, cataloged under National Stock Number 5331-01-138-5272, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd.. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-138-5272 |
| Primary Part Number | 711902 PIECE 19 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd. |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 711902 PIECE 19 PRIMARY | Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd. (CAN) |
| A0365-19 | Singer Valve Inc (CAN) |
| Reference | Meaning |
|---|---|
| A0365-19 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-138-5272 is a O-Ring, manufactured by Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-138-5272 has 2 manufacturer part numbers on file: 711902 PIECE 19 (Aircraft Appliances and Equipment Limited Div Aircraft Appliances and Equipment Ltd.), A0365-19 (Singer Valve Inc).
Key specifications for 711902 PIECE 19: Material: RUBBER SYNTHETIC. 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.