The O-Ring, cataloged under National Stock Number 5331-00-931-6748, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, 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 | 5331-00-931-6748 |
| Primary Part Number | MS28778-10 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Center Hole Diameter | 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE |
| Cross-Sectional Height | 0.094 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MS28778-10 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| MS28778-10ES | Eriks B.v. (NLD) |
| 5M.3882.220.03 | Hensoldt Sensors Gmbh Div Seps (DEU) |
| MS28778-10 | Society of Automotive Engineers Inc (USA) |
| MS28778-10 | Sae International Dba Sae International (USA) |
NSN 5331-00-931-6748 is a O-Ring, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-931-6748 has 5 cross-referenced part numbers: MS28778-10 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS28778-10ES (Eriks B.v.), 5M.3882.220.03 (Hensoldt Sensors Gmbh Div Seps), MS28778-10 (Society of Automotive Engineers Inc), MS28778-10 (Sae International Dba Sae International).
There are 5 known substitutes for 5331-00-931-6748: 5331-00-079-0216, 5331-00-108-5691, 5331-00-448-6753 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS28778-10: Center Hole Diameter: 0.750 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; Material: PLASTIC POLYTETRAFLUOROETHYLENE; Cross-Sectional Height: 0.094 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.