The O-Ring, cataloged under National Stock Number 5331-01-687-3913, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-687-3913 |
| Primary Part Number | ZH229A912 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C |
| Status | ACTIVE |
| Cross-Sectional Height | 0.116 INCHES NOMINAL IN |
| Outside Diameter | 1.156 INCHES NOMINAL IN |
| Center Hole Diameter | 0.924 INCHES NOMINAL IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ZH229A912 PRIMARY | The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C (USA) |
NSN 5331-01-687-3913 is a O-Ring, manufactured by The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-687-3913 has 1 manufacturer part number on file: ZH229A912 (The Hellan Strainer Co Div Sister Company of Cleveland Gear, Subs. of Industrial Mfg. C).
Key specifications for ZH229A912: Cross-Sectional Height: 0.116 INCHES NOMINAL IN; Outside Diameter: 1.156 INCHES NOMINAL IN; Center Hole Diameter: 0.924 INCHES NOMINAL IN; End Item Identification: STRAINER, SIMP. 4 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.