The O-Ring, cataloged under National Stock Number 5331-01-264-3620, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-264-3620 |
| Primary Part Number | C11240-70 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.097 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Criticality Code Justification | ZZZY |
| Center Hole Diameter | 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN |
| Test Data Document | 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATION |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| C11240-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| N141000710 | Wass Srl (ITA) |
| Reference | Meaning |
|---|---|
| AS568A-116/AMS3212 | 3/9 Design control — primary reference U.S. Government activity |
| AS568A-116/AMS3212 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 01-435-0078-5 PIECE 96 | 5/9 Secondary reference Flowserve Corp Dba Automax Actuators Div Flowserve Us Company |
| LL-HX4-9142 | 5/9 Secondary reference Defense Logistics Agency Dba Defense Supply Center Philadelphia |
| 2-116C557-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-116C147-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-264-3620 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-264-3620 has 2 manufacturer part numbers on file: C11240-70 (Parker-Hannifin Corp Div O-Ring Division), N141000710 (Wass Srl).
Key specifications for C11240-70: Cross-Sectional Height: 0.097 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Criticality Code Justification: ZZZY; Center Hole Diameter: 0.728 INCHES MINIMUM AND 0.746 INCHES MAXIMUM IN; Test Data Document: 81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).. 6 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.