The O-Ring, cataloged under National Stock Number 5331-01-473-7033, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is M. E. Industries, Inc.. Government technical data includes 3 specifications, 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. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-473-7033 |
| Primary Part Number | 101263 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | M. E. Industries, Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.3125 INCHES NOMINAL IN |
| Center Hole Diameter | 16.4842 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 |
|---|---|
| 101263 PRIMARY | M. E. Industries, Inc. (USA) |
NSN 5331-01-473-7033 is a O-Ring, manufactured by M. E. Industries, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-473-7033 has 1 manufacturer part number on file: 101263 (M. E. Industries, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-558-7872. Verify interchangeability with system specifications before substitution.
Key specifications for 101263: Cross-Sectional Height: 0.3125 INCHES NOMINAL IN; Special Features: 5/16 CS X 53 3/4LG BUNA-N; Center Hole Diameter: 16.4842 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: 0-RING GASKET. 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.