The O-Ring, cataloged under National Stock Number 5331-01-096-8820, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 10 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-01-096-8820 |
| Primary Part Number | 63020 ITEM 34CP |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 0.879 INCHES NOMINAL IN |
| Hardness Rating | 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZW |
| Material Document and Classification | MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Nondefinitive Spec/std Data | 1 TYPE AND 2 CLASS |
| Center Hole Diameter | 0.730 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 63020 ITEM 34CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 63750-101 ITEM 18CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 63020 ITEM 34 | 5/1 Secondary reference U.S. Government activity |
| M83248-2-018 | 5/9 Secondary reference U.S. Government activity |
| AS3581-018CP | 5/9 Secondary reference U.S. Government activity |
| M83248/2-018 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| SAE-AS3581 | 3/1 Design control — primary reference Sae International Dba Sae International |
| M83248-2-018CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| AS3581-018CP | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-01-096-8820 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-096-8820 has 1 manufacturer part number on file: 63020 ITEM 34CP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-418-2974. Verify interchangeability with system specifications before substitution.
Key specifications for 63020 ITEM 34CP: Temp Rating: -30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 0.879 INCHES NOMINAL IN; Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM. 10 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.