The O-Ring, cataloged under National Stock Number 5331-01-549-4704, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-549-4704 |
| Primary Part Number | 7550478-264382086-30CP |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Criticality Code Justification | ZZZW |
| Elongation Percentage | 125 MAXIMUM |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Peripheral Diameter | 1.262 INCHES NOMINAL IN |
| Center Hole Diameter | 0.984 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 7550478-264382086-30CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 264382086-30CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 2643-820-86 ITEM 30CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-264382086-30CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-7284928 ITEM 30CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| M83248/1-214CP | 5/9 Secondary reference Naval Inventory Control Point Mechanicsburg |
| 845-7284928 ITEM 30 | 5/1 Secondary reference Naval Sea Systems Command |
| 264382086-30 | 5/1 Secondary reference U.S. Government activity |
| AS3208-214 CP | 5/9 Secondary reference U.S. Government activity |
| 2643-820-86 ITEM 30 | 5/1 Secondary reference U.S. Government activity |
| SAE-AMS7276 | 3/1 Design control — primary reference Sae International Dba Sae International |
| M83248/1-214 | 5/1 Secondary reference U.S. Government activity |
| AS3209-214CP | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS3209-214CP | 5/9 Secondary reference U.S. Government activity |
| G547-0002-264382086-30 | 5/1 Secondary reference U.S. Government activity |
| 7550478-264382086-30 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 5331-01-549-4704 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-549-4704 has 5 manufacturer part numbers on file: 7550478-264382086-30CP (Naval Inventory Control Point Mechanicsburg), 264382086-30CP (Naval Inventory Control Point Mechanicsburg), 2643-820-86 ITEM 30CP (Naval Inventory Control Point Mechanicsburg), G547-0002-264382086-30CP (Naval Inventory Control Point Mechanicsburg), 845-7284928 ITEM 30CP (Naval Inventory Control Point Mechanicsburg).
Key specifications for 7550478-264382086-30CP: Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Criticality Code Justification: ZZZW; Elongation Percentage: 125 MAXIMUM; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. 7 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.