The O-Ring, cataloged under National Stock Number 5331-01-443-8690, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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 | 5331-01-443-8690 |
| Primary Part Number | A-A-55549 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Cross-Sectional Height | 0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN |
| Material | RUBBER SILICONE CLASS Q |
| Center Hole Diameter | 0.915 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-A-55549 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| AA55549-12 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| 40009315-013 | L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West (USA) |
| A-A-55549-12 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5331-01-443-8690 is a O-Ring, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-443-8690 has 4 cross-referenced part numbers: A-A-55549 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55549-12 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 40009315-013 (L3 Technologies, Inc. Dba Communication Systems-West Div Communication Systems-West), A-A-55549-12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).
There are 6 known substitutes for 5331-01-443-8690: 5331-00-599-2831, 5331-00-684-5098, 5331-00-806-3197 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-55549: Cross-Sectional Height: 0.136 INCHES MINIMUM AND 0.142 INCHES MAXIMUM IN; Material: RUBBER SILICONE CLASS Q; Center Hole Diameter: 0.915 INCHES MINIMUM AND 0.927 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.