The O-Ring, cataloged under National Stock Number 5331-01-326-3485, 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 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-01-326-3485 |
| Primary Part Number | NAS1601-215CP |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| Criticality Code Justification | FEAT |
| Center Hole Diameter | 1.046 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| NAS1601-215CP | Naval Inventory Control Point Mechanicsburg (USA) |
| NAS1611-215CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| NAS1611-215 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| NAS1601-215 | 5/9 Secondary reference U.S. Government activity |
| NAS1601-215CP | 3/1 Design control — primary reference U.S. Government activity |
| NAS1601 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5331-01-326-3485 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-326-3485 has 2 manufacturer part numbers on file: NAS1601-215CP (Naval Inventory Control Point Mechanicsburg), NAS1611-215CP (Naval Inventory Control Point Mechanicsburg).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-715-7555. Verify interchangeability with system specifications before substitution.
Key specifications for NAS1601-215CP: Cross-Sectional Height: 0.139 INCHES NOMINAL IN; Criticality Code Justification: FEAT; Special Features: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Center Hole Diameter: 1.046 INCHES NOMINAL IN. 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.
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.