The O-Ring, cataloged under National Stock Number 5331-01-426-3557, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-Ring (FSG 53) |
| Manufacturers | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (CAGE 07524) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-426-3557 |
| Primary Part Number | E-4681 REV A ITEM 72 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| E-4681 REV A ITEM 72 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
| 702041 PRIMARY | Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer (USA) |
NSN 5331-01-426-3557 is a O-Ring, manufactured by Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-426-3557 has 2 cross-referenced part numbers: E-4681 REV A ITEM 72 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer), 702041 (Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer).
There are 3 known substitutes for 5331-01-426-3557: 6150-00-510-3111, 2520-00-615-8446, 5935-01-093-8510. Verify interchangeability with system specifications before substitution.