The O-Ring, cataloged under National Stock Number 5331-00-352-0329, 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 4 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-352-0329 |
| Primary Part Number | 2-234C557-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | C. E. Conover & Co., Inc. |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Outside Diameter | 3.262 INCHES NOMINAL IN |
| Center Hole Diameter | 2.969 INCHES MINIMUM AND 2.999 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 |
|---|---|
| 2-234C557-70 PRIMARY | C. E. Conover & Co., Inc. (USA) |
| Reference | Meaning |
|---|---|
| ARP568-234C557- 7 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-234C147-70 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 5112-73 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-234C557-7 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-352-0329 is a O-Ring, manufactured by C. E. Conover & Co., Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-352-0329 has 1 manufacturer part number on file: 2-234C557-70 (C. E. Conover & Co., Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-240-6004. Verify interchangeability with system specifications before substitution.
Key specifications for 2-234C557-70: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Outside Diameter: 3.262 INCHES NOMINAL IN; Center Hole Diameter: 2.969 INCHES MINIMUM AND 2.999 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 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.