The O-Ring, cataloged under National Stock Number 5331-01-640-9680, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Exlar Corporation. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-640-9680 |
| Primary Part Number | 44443 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Exlar Corporation |
| Status | ACTIVE |
| Material | RUBBER NATURAL |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Center Hole Diameter | 6.487 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 44443 PRIMARY | Exlar Corporation (USA) |
| 40210 ITEM NO 229 | Exlar Corporation (USA) |
NSN 5331-01-640-9680 is a O-Ring, manufactured by Exlar Corporation, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-640-9680 has 2 cross-referenced part numbers: 44443 (Exlar Corporation), 40210 ITEM NO 229 (Exlar Corporation).
There are 5 known substitutes for 5331-01-640-9680: 3020-00-923-9131, 5330-00-997-6125, 5950-01-181-6641 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 44443: Material: RUBBER NATURAL; Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Center Hole Diameter: 6.487 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.