The O-Ring, cataloged under National Stock Number 5331-00-618-0800, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-618-0800 |
| Primary Part Number | MS28775-335 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Outside Diameter | 3.115 INCHES MINIMUM AND 3.175 INCHES MAXIMUM IN |
| Center Hole Diameter | 2.710 INCHES MINIMUM AND 2.740 INCHES MAXIMUM 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 |
|---|---|
| MS28775-335 | Aero Stock (FRA) |
| PRP568-335-4067-70 | Parco, Llc (USA) |
| MS28775-335 | Goriziane Group Spa (ITA) |
| MS28775-335 PRIMARY | Sae International Dba Sae International (USA) |
| 2-335 N304-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 1462143 | Asc Pty Ltd (AUS) |
| Reference | Meaning |
|---|---|
| 2-335 N304-75 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| MS28775-335 | 5/9 Secondary reference U.S. Government activity |
| 6227-38 | 5/9 Secondary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| 5330006180800 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| SAE-AS28775 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS28775-335 | 5/9 Secondary reference Le Joint Francais |
| MS28775-335ES | 5/9 Secondary reference Eriks B.v. |
| MS28775-335 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-00-618-0800 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-618-0800 has 6 manufacturer part numbers on file: MS28775-335 (Aero Stock), PRP568-335-4067-70 (Parco, Llc), MS28775-335 (Goriziane Group Spa), MS28775-335 (Sae International Dba Sae International), 2-335 N304-75 (Parker-Hannifin Corp Div O-Ring Division) and 1 more.
Key specifications for MS28775-335: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Outside Diameter: 3.115 INCHES MINIMUM AND 3.175 INCHES MAXIMUM IN; Center Hole Diameter: 2.710 INCHES MINIMUM AND 2.740 INCHES MAXIMUM IN; End Item Identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE. 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.