The O-Ring, cataloged under National Stock Number 5331-01-163-3688, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Aqua-Chem, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, 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 | 5331-01-163-3688 |
| Primary Part Number | 695-D-7683ITEM17 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Aqua-Chem, Inc. |
| Status | ACTIVE |
| Center Hole Diameter | 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Temp Rating | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Departure From Cited Designator | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Elongation Percentage | 80 MAXIMUM |
| Criticality Code Justification | ZZZX |
| Peripheral Diameter | 0.495 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 695-D-7683ITEM17 | Aqua-Chem, Inc. (USA) |
| MS28778-4 | Sae International Dba Sae International (USA) |
| MS28778-4 | Society of Automotive Engineers Inc (USA) |
| 2621-906-19PC21 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 845-2110223PC18 | Naval Ship Systems Command (USA) |
| AN902-4 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| D4-224E005PC27 | Cameron Energy Services Corp. (USA) |
| 0001.0014.R | Cameron Energy Services Corp. (USA) |
| MS28778-4 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 216-4363322 BC-F48 | Naval Ship Systems Command (USA) |
| 200-2948999 PC 31 | Naval Ship Systems Command (USA) |
NSN 5331-01-163-3688 is a O-Ring, manufactured by Aqua-Chem, Inc., classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-163-3688 has 11 cross-referenced part numbers: 695-D-7683ITEM17 (Aqua-Chem, Inc.), MS28778-4 (Sae International Dba Sae International), MS28778-4 (Society of Automotive Engineers Inc), 2621-906-19PC21 (Electric Boat Corporation Div General Dynamics Electric Boat), 845-2110223PC18 (Naval Ship Systems Command) and 6 more.
There are 5 known substitutes for 5331-01-163-3688: 5310-00-246-8769, 5331-00-805-2966, 5331-01-013-1453 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 695-D-7683ITEM17: Center Hole Diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Departure From Cited Designator: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 9 total characteristics are documented in the Federal Logistics Information System.