The O-Ring, cataloged under National Stock Number 5331-00-624-1855, 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 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-624-1855 |
| Primary Part Number | MS28775-328 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | CANCELLED |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Outside Diameter | 2.245 INCHES MINIMUM AND 2.295 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.840 INCHES MINIMUM AND 1.860 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 32175-124 | Safran Landing Systems Ex Messier Dowty (FRA) |
| 7377-328 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP568-328-4067-70 | Parco, Llc (USA) |
| MS28775-328 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| 4067-70-328 | Parco, Llc (USA) |
| 6914616-328 | Naval Sea Systems Command (USA) |
| MS28775-328 PRIMARY | Sae International Dba Sae International (USA) |
| P48026-328 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| Reference | Meaning |
|---|---|
| SR 832-75-328 | 5/2 Secondary reference U.S. Government activity |
| MS28775-328 | 5/9 Secondary reference Feinmechanische Werke Mainz Gmbh |
| SAE-AS28775 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS28775-328 | 3/9 Design control — primary reference U.S. Government activity |
| 2-328 N304-75 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MS28775-328 | 5/9 Secondary reference Liebherr-Aerospace Lindenberg Gmbh |
| 1446-328 | 5/2 Secondary reference U.S. Government activity |
| MS28784-328 | 5/9 Secondary reference U.S. Government activity |
| MS28775-328 | 5/9 Secondary reference U.S. Government activity |
| MS28784-328 | 5/9 Secondary reference U.S. Government activity |
| 54A125-328 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| N304-75-328 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 6227-31 | 5/9 Secondary reference Trelleborg Sealing Solutions El Segundo, Inc. Dba Tss El Segundo |
| RE-70-MS-BS328 | 5/9 Secondary reference Dti Associates Inc |
| MS28775-328ES | 5/9 Secondary reference Eriks B.v. |
| 2-328 N304-75 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| MS28775-328 | 5/1 Secondary reference Parco, Llc |
| 5330006241855 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
NSN 5331-00-624-1855 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: cancelled.
NSN 5331-00-624-1855 has 8 manufacturer part numbers on file: 32175-124 (Safran Landing Systems Ex Messier Dowty), 7377-328 (Parker Hannifin Corporation Div O-Ring Division), PRP568-328-4067-70 (Parco, Llc), MS28775-328 (Dbr Industries, Inc. Dba Dbr Industries Inc), 4067-70-328 (Parco, Llc) and 3 more.
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-933-0058, 5330-01-251-4734, 4810-01-661-7211. Verify interchangeability with system specifications before substitution.
Key specifications for MS28775-328: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Outside Diameter: 2.245 INCHES MINIMUM AND 2.295 INCHES MAXIMUM IN; Center Hole Diameter: 1.840 INCHES MINIMUM AND 1.860 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.
NSN 5331-00-624-1855 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.