The O-Ring, cataloged under National Stock Number 5331-00-465-6688, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-465-6688 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Temp Rating | 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 2.047 INCHES MINIMUM AND 2.089 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZY |
| Material Document and Classification | E515-8,FSCM 83259 MFR REF SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 1.852 INCHES MINIMUM AND 1.872 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Reference | Meaning |
|---|---|
| 22-38625 PC10CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 22-38625 PC10 | 5/2 Secondary reference U.S. Government activity |
| E0515 2-134CP | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
| C3178-134 | 7/2 Vendor item drawing reference U.S. Government activity |
| E0515 2-134 | 3/1 Design control — primary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-134E515-8 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 22-38625 | D/9 Drawing number reference only U.S. Government activity |
NSN 5331-00-465-6688 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4440-00-689-6437, 5340-01-379-5961. Verify interchangeability with system specifications before substitution.
Key specifications for 5331-00-465-6688: Temp Rating: 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 2.047 INCHES MINIMUM AND 2.089 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM. 9 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.