The O-Ring, cataloged under National Stock Number 5331-01-216-7393, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-216-7393 |
| Primary Part Number | 12338997 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Cross-Sectional Height | 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| 12338997 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| CBI-110 | Clark Brothers Instrument Co (USA) |
| 5591585-A | Am General Llc (USA) |
| Reference | Meaning |
|---|---|
| 5331PL0841435 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-01-216-7393 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-216-7393 has 3 manufacturer part numbers on file: 12338997 (U S Army Tank Automotive Command Amsta-Im-Mm), CBI-110 (Clark Brothers Instrument Co), 5591585-A (Am General Llc).
Key specifications for 12338997: Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Center Hole Diameter: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 3 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.