The O-Ring, cataloged under National Stock Number 5331-01-028-6510, 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 6 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-028-6510 |
| Primary Part Number | MS29513-387 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Outside Diameter | 18.375 INCHES NOMINAL IN |
| Elongation Percentage | 200 MAXIMUM |
| Center Hole Diameter | 17.910 INCHES MINIMUM AND 18.000 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 |
|---|---|
| PX1775-387 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| RT253-65-387 | Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA) |
| 60-P-31-387 | West American Rubber Co Extrude Products Div (USA) |
| MS29513-387 PRIMARY | Sae International Dba Sae International (USA) |
| C-69-387 | Federal-Mogul Corp Government Sales Dept (USA) |
| 457-60-387 | Parco, Llc (USA) |
| PRP568-387-457-60 | Parco, Llc (USA) |
| 10V60-141-387 | Houghton International Inc. (USA) |
| 7866-387 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 1793-387 | 5/2 Secondary reference U.S. Government activity |
| 2-387 N602-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MS29513-387 | 5/9 Secondary reference U.S. Government activity |
| 2-387 N602-70 | 5/9 Secondary reference Dolly Mfg Corp |
| SR-822A-60-387 | 5/2 Secondary reference U.S. Government activity |
| SAE-AS29513 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS29513-387 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-01-028-6510 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-028-6510 has 9 manufacturer part numbers on file: PX1775-387 (Acushnet Rubber Company, Inc. Dba Precix), RT253-65-387 (Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp), 60-P-31-387 (West American Rubber Co Extrude Products Div), MS29513-387 (Sae International Dba Sae International), C-69-387 (Federal-Mogul Corp Government Sales Dept) and 4 more.
Key specifications for MS29513-387: Temp Rating: -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Outside Diameter: 18.375 INCHES NOMINAL IN; Elongation Percentage: 200 MAXIMUM. 6 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.