The O-Ring, cataloged under National Stock Number 5331-00-702-2738, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Schindler Elevator Corporation. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-702-2738 |
| Primary Part Number | WW309-31 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Schindler Elevator Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Center Hole Diameter | 13.945 INCHES MINIMUM AND 14.005 INCHES MAXIMUM IN |
| Material | RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR |
| 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 |
|---|---|
| WW309-31 | Westinghouse Electric Corp (USA) |
| WW309-31 PRIMARY | Schindler Elevator Corporation (USA) |
| 907-70-902-84 PRIMARY | Parker Hannifin Corporation Div O-Ring Division (USA) |
NSN 5331-00-702-2738 is a O-Ring, manufactured by Schindler Elevator Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-702-2738 has 3 manufacturer part numbers on file: WW309-31 (Westinghouse Electric Corp), WW309-31 (Schindler Elevator Corporation), 907-70-902-84 (Parker Hannifin Corporation Div O-Ring Division).
Key specifications for WW309-31: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Center Hole Diameter: 13.945 INCHES MINIMUM AND 14.005 INCHES MAXIMUM IN; Material: RUBBER ISOBUTYLENE-ISOPRENE CLASS IIR. 3 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.