The O-Ring, cataloged under National Stock Number 5331-01-537-0666, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-537-0666 |
| Primary Part Number | 12422548-010 |
| 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 | 2.6 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 37.7 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 12422548-010 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2-128 NBR PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 12422548 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 2-128 | 5/9 Secondary reference Lek Corp |
NSN 5331-01-537-0666 is a O-Ring, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-537-0666 has 2 manufacturer part numbers on file: 12422548-010 (U S Army Tank Automotive Command Amsta-Im-Mm), 2-128 NBR (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
Key specifications for 12422548-010: Cross-Sectional Height: 2.6 MILLIMETERS NOMINAL MM; Center Hole Diameter: 37.7 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: O-RING METRIC; End Item Identification: 2320014473892, TRUCK, WRECKER. 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.