The O-Ring, cataloged under National Stock Number 5331-00-938-9102, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-938-9102 |
| Primary Part Number | PRP918-2347 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | CANCELLED |
| Cross-Sectional Height | 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 0.891 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| PRP918-2347 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| 918-2347 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP568-918-3110-70 | Parco, Llc (USA) |
| Reference | Meaning |
|---|---|
| MS28900 | 4/1 Identification reference U.S. Government activity |
| 5-138 C557-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| B-18SR533-70 | 5/2 Secondary reference U.S. Government activity |
| 5-138 C873-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MS28900-18 | 2/2 Government specification standardization U.S. Government activity |
NSN 5331-00-938-9102 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: cancelled.
NSN 5331-00-938-9102 has 3 manufacturer part numbers on file: PRP918-2347 (Parker Hannifin Corporation Div O-Ring Division), 918-2347 (Parker Hannifin Corporation Div O-Ring Division), PRP568-918-3110-70 (Parco, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-612-8998. Verify interchangeability with system specifications before substitution.
Key specifications for PRP918-2347: Cross-Sectional Height: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 0.891 INCHES MINIMUM AND 0.916 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.
NSN 5331-00-938-9102 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.