The O-Ring, cataloged under National Stock Number 5331-00-333-4384, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-333-4384 |
| Primary Part Number | 1H5728 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Outside Diameter | 2.734 INCHES MINIMUM AND 2.790 INCHES MAXIMUM IN |
| Center Hole Diameter | 2.464 INCHES MINIMUM AND 2.504 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Temp Rating | -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Elongation Percentage | 125 MAXIMUM |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS568B-230 | Society of Automotive Engineers Inc (USA) |
| 1H5728 | William Adams Pty Ltd (AUS) |
| 1H5728 | Hastings Deering (aust) Pty Ltd (AUS) |
| 1H5728 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| AS568-230 | Society of Automotive Engineers Inc (USA) |
| ASTM-D2000 M7BG810 | American Society for Testing and Materials Dba Astm International (USA) |
| 1H-5728 | Pon Equipment B.v. (NLD) |
| 2-230N951-75 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| 1H5728 | Westrac Pty Ltd (AUS) |
| AS568-230 | Sae International Dba Sae International (USA) |
NSN 5331-00-333-4384 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-333-4384 has 10 cross-referenced part numbers: AS568B-230 (Society of Automotive Engineers Inc), 1H5728 (William Adams Pty Ltd), 1H5728 (Hastings Deering (aust) Pty Ltd), 1H5728 (Caterpillar Inc Div Caterpillar Defense), AS568-230 (Society of Automotive Engineers Inc) and 5 more.
There are 6 known substitutes for 5331-00-333-4384: 5331-00-435-8496, 5331-00-606-9841, 5331-00-618-6112 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1H5728: Outside Diameter: 2.734 INCHES MINIMUM AND 2.790 INCHES MAXIMUM IN; Center Hole Diameter: 2.464 INCHES MINIMUM AND 2.504 INCHES MAXIMUM IN; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Temp Rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF. 7 total characteristics are documented in the Federal Logistics Information System.