The O-Ring, cataloged under National Stock Number 5331-01-549-2403, 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 5 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-549-2403 |
| Primary Part Number | 7550478-G7656251-0F244CP |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZW |
| Departure From Cited Document | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D. |
| Center Hole Diameter | 2.339 INCHES MINIMUM AND 2.379 INCHES MAXIMUM 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-G7656251-0F244CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G765-6251 PN F244CP | Naval Inventory Control Point Mechanicsburg (USA) |
| M83248/1-229CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G547-0002-G7656251-0F244CP | Naval Inventory Control Point Mechanicsburg (USA) |
| G7656251-0F244CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 592-7385382 PN F244CP | Naval Inventory Control Point Mechanicsburg (USA) |
| 54-67-3229CP | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 7550478-G7656251-0F244 | 3/1 Design control — primary reference Naval Sea Systems Command |
| G547-0002-G7656251-0F244 | 5/1 Secondary reference U.S. Government activity |
| 54-67-3229 | 5/1 Secondary reference U.S. Government activity |
| M83248/1-229 | 5/1 Secondary reference U.S. Government activity |
| G765-6251 PN F244 | 5/1 Secondary reference U.S. Government activity |
| G7656251-0F244 | 5/1 Secondary reference U.S. Government activity |
| 592-7385382 PN F244 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 5331-01-549-2403 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-549-2403 has 7 manufacturer part numbers on file: 7550478-G7656251-0F244CP (Naval Inventory Control Point Mechanicsburg), G765-6251 PN F244CP (Naval Inventory Control Point Mechanicsburg), M83248/1-229CP (Naval Inventory Control Point Mechanicsburg), G547-0002-G7656251-0F244CP (Naval Inventory Control Point Mechanicsburg), G7656251-0F244CP (Naval Inventory Control Point Mechanicsburg) and 2 more.
Key specifications for 7550478-G7656251-0F244CP: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Criticality Code Justification: ZZZW; Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D.; Center Hole Diameter: 2.339 INCHES MINIMUM AND 2.379 INCHES MAXIMUM IN. 5 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.