The O-Ring, cataloged under National Stock Number 5331-01-540-0866, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-540-0866 |
| Primary Part Number | 6394540 FIND 21 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | ZZZX |
| Departure From Cited Designator | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE. CRITICAL ITEMS FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES. |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6394540 FIND 21 | Naval Sea Systems Command (USA) |
| M83248/2-908 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 6394540 FIND 21D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| 6391018 FIND 037 | Naval Sea Systems Command (USA) |
| 6391018 FIND 037D0 | Naval Inventory Control Point Mechanicsburg (USA) |
| M83248/2-908D0 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5331-01-540-0866 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-540-0866 has 6 cross-referenced part numbers: 6394540 FIND 21 (Naval Sea Systems Command), M83248/2-908 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6394540 FIND 21D0 (Naval Inventory Control Point Mechanicsburg), 6391018 FIND 037 (Naval Sea Systems Command), 6391018 FIND 037D0 (Naval Inventory Control Point Mechanicsburg) and 1 more.
There are 7 known substitutes for 5331-01-540-0866: 5331-00-167-5173, 5331-01-097-2778, 5330-01-267-3793 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6394540 FIND 21: Criticality Code Justification: ZZZX; End Item Identification: COMPRESSOR ASSEMBLY, ASDS; ENVIRONMENTAL CONDITIONING UNIT; Departure From Cited Designator: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE. CRITICAL ITEMS FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES.; Part Name Assigned by Controlling Agency: (DRAWING) O-RING. 4 total characteristics are documented in the Federal Logistics Information System.