The Pump Subassembly,rotary, cataloged under National Stock Number 4320-01-217-8393, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 2 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-217-8393 |
| Primary Part Number | 5SK99 |
| Item Name | Pump Subassembly,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Major Components | REAR COVER 1;SEAL GLAND 4;SEAL RETAINER 4:FRONT WEAR PLATE 2;DRIVEN GEAR 2;DRIVE GEAR 2;CENTER SECTION 2;REARWEAR PLATE 2;ADAPTER SECTION 1;COUPLING 1;INLET PORT SECTION 1;END COVER 1; SHAFT SEAL 1 |
| Criticality Code Justification | FEAT |
| 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 |
|---|---|
| 5SK99 PRIMARY | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 1454560 | 5/9 Secondary reference Oshkosh Corp |
| G2020-6E9B11B-1 2A30-S36 | 5/9 Secondary reference Eaton Aerospace, Llc Dba Jackson South |
| G2020W-6E9B11B-12 | 5/9 Secondary reference Barnes John S Corp Statesville Div |
| G2020W-6E9B11B-12A51-S36 | 5/9 Secondary reference Barnes John S Corp Statesville Div |
| 1841470 | 3/9 Design control — primary reference Oshkosh Corp |
| 5SK99 | 5/9 Secondary reference Oshkosh Corp |
NSN 4320-01-217-8393 is a Pump Subassembly,rotary, manufactured by Oshkosh Defense Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-217-8393 has 1 manufacturer part number on file: 5SK99 (Oshkosh Defense Llc).
Key specifications for 5SK99: Major Components: REAR COVER 1;SEAL GLAND 4;SEAL RETAINER 4:FRONT WEAR PLATE 2;DRIVEN GEAR 2;DRIVE GEAR 2;CENTER SECTION 2;REARWEAR PLATE 2;ADAPTER SECTION 1;COUPLING 1;INLET PORT SECTION 1;END COVER 1; SHAFT SEAL 1; Criticality Code Justification: FEAT; Special Features: WEAPON SYSTEM ESSENTIAL; End Item Identification: HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS). 2 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.