The O-Ring, cataloged under National Stock Number 5331-01-550-3391, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-550-3391 |
| Primary Part Number | 845-4687579 ITEM 38 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Material | PLASTIC FLUOROCARBON |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Cross-Sectional Height | 0.139 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZW |
| Center Hole Diameter | 0.984 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 845-4687579 ITEM 38 | Naval Ship Systems Command (USA) |
| 7550478-264277305-38 | Naval Sea Systems Command (USA) |
| 7550478-264277305-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4687579 ITEM 38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 54-66-4214CP | Naval Inventory Control Point Mechanicsburg (USA) |
| M83248/2-214 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 264277305-38 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 54-66-4214 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| 2642-773-05 ITEM 38 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| M83248/2-214CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 264277305-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 2642-773-05 ITEM 38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-264277305-38CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-264277305-38 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 5331-01-550-3391 is a O-Ring, manufactured by Naval Ship Systems Command, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-550-3391 has 14 cross-referenced part numbers: 845-4687579 ITEM 38 (Naval Ship Systems Command), 7550478-264277305-38 (Naval Sea Systems Command), 7550478-264277305-38CP (Naval Inventory Control Point Mechanicsburg), 845-4687579 ITEM 38CP (Naval Inventory Control Point Mechanicsburg), 54-66-4214CP (Naval Inventory Control Point Mechanicsburg) and 9 more.
There are 2 known substitutes for 5331-01-550-3391: 5331-01-017-6535, 5331-01-096-8823. Verify interchangeability with system specifications before substitution.
Key specifications for 845-4687579 ITEM 38: Material: PLASTIC FLUOROCARBON; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Cross-Sectional Height: 0.139 INCHES NOMINAL IN; End Item Identification: VALVE,BALL,ANGLE, 2IN. IN. 6 total characteristics are documented in the Federal Logistics Information System.