The O-Ring, cataloged under National Stock Number 5331-01-475-6900, 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 5 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 | 5331-01-475-6900 |
| Primary Part Number | A-A-55801 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Hardness Rating | 50.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER SILICONE CLASS Q |
| Center Hole Diameter | 0.056 INCHES NOMINAL IN |
| Cross-Sectional Height | 0.060 INCHES NOMINAL IN |
| Material Document and Classification | A-A-55801,CLASS 3B,GRADE 50, SIZE 003 FED SPEC SINGLE MATERIAL RESPONSE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A-A-55801 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| AA55801-003-F-5 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
NSN 5331-01-475-6900 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 5331-01-475-6900 has 2 cross-referenced part numbers: A-A-55801 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA55801-003-F-5 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
There are 5 known substitutes for 5331-01-475-6900: 5331-00-137-3293, 5331-01-228-0605, 5331-01-321-7194 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-55801: End Item Identification: AIRCRAFT,B-2 BOMBER (ATB); Hardness Rating: 50.0 SHORE DUROMETER A NOMINAL; Material: RUBBER SILICONE CLASS Q; Center Hole Diameter: 0.056 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.