The O-Ring, cataloged under National Stock Number 5331-01-668-1958, 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 5 commercial cross-references from 4 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 | 5331-01-668-1958 |
| Primary Part Number | 8599135 ITEM 50 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8599135 ITEM 50 | Naval Sea Systems Command (USA) |
| AS568-027D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| 8599135 ITEM 50D7 | Naval Inventory Control Point Mechanicsburg (USA) |
| AS568-027 | Society of Automotive Engineers Inc (USA) |
| AS568-027 | Sae International Dba Sae International (USA) |
NSN 5331-01-668-1958 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-668-1958 has 5 cross-referenced part numbers: 8599135 ITEM 50 (Naval Sea Systems Command), AS568-027D7 (Naval Inventory Control Point Mechanicsburg), 8599135 ITEM 50D7 (Naval Inventory Control Point Mechanicsburg), AS568-027 (Society of Automotive Engineers Inc), AS568-027 (Sae International Dba Sae International).
There are 5 known substitutes for 5331-01-668-1958: 5331-00-064-4354, 5331-00-283-4609, 5331-01-148-8215 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for 8599135 ITEM 50: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 2 total characteristics are documented in the Federal Logistics Information System.