The O-Ring, cataloged under National Stock Number 5331-00-352-0327, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is C. E. Conover & Co., Inc.. Government technical data includes 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-352-0327 |
| Primary Part Number | 2-013C557-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | C. E. Conover & Co., Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 2-013C557-70 PRIMARY | C. E. Conover & Co., Inc. (USA) |
| 2AL241 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 10319124 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 2AL241 | 5/9 Secondary reference Oshkosh Corp |
| 56470 | 5/2 Secondary reference U.S. Government activity |
| 2-013C557-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 00442 | 5/9 Secondary reference Austin-Westran Llc |
NSN 5331-00-352-0327 is a O-Ring, manufactured by C. E. Conover & Co., Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-352-0327 has 2 manufacturer part numbers on file: 2-013C557-70 (C. E. Conover & Co., Inc.), 2AL241 (Oshkosh Defense Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-136-1967, 4130-01-460-6082. Verify interchangeability with system specifications before substitution.
Key specifications for 2-013C557-70: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 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.