The O-Ring, cataloged under National Stock Number 5331-01-145-3163, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-145-3163 |
| Primary Part Number | 1HT288 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM 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 |
|---|---|
| 1HT288 PRIMARY | Oshkosh Defense Llc (USA) |
| 2GL65 | Oshkosh Defense Llc (USA) |
| 2CX313 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 2GL65 | 5/9 Secondary reference Oshkosh Corp |
| 1HT288 | 5/9 Secondary reference Oshkosh Corp |
| 2CX313 | 5/9 Secondary reference Oshkosh Corp |
| 11-015-KF | 5/9 Secondary reference Modular Controls Corp |
| 11-015 | 5/9 Secondary reference Modular Controls Corp |
NSN 5331-01-145-3163 is a O-Ring, manufactured by Oshkosh Defense Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-145-3163 has 3 manufacturer part numbers on file: 1HT288 (Oshkosh Defense Llc), 2GL65 (Oshkosh Defense Llc), 2CX313 (Oshkosh Defense Llc).
Key specifications for 1HT288: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 0.544 INCHES MINIMUM AND 0.558 INCHES MAXIMUM IN; End Item Identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS); 2320-01-304-2277 PLS (PALLETIZED LOADING SYSTEM); Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.