The Gear Rotor Set,rotary Pump, cataloged under National Stock Number 4320-01-338-2277, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-338-2277 |
| Primary Part Number | N197331-1 |
| Item Name | Gear Rotor Set,rotary Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited |
| Status | ACTIVE |
| Component Quantity | 2 |
| Nonsupply Items and Quantities | 76301 N197331-1 GEAR 2 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| N197331-1 | Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| N197331-1 | 5/9 Secondary reference Safran Electrical & Power Uk Limited |
| N197331-1 | 5/9 Secondary reference Transaero, Inc. |
| N197331-1 | 3/9 Design control — primary reference Ontic Engineering & Manufacturing, Inc Dba Ontic Us |
| N197331-1 | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 4320-01-338-2277 is a Gear Rotor Set,rotary Pump, manufactured by Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-338-2277 has 1 manufacturer part number on file: N197331-1 (Ontic Engineering & Manufacturing Uk Limited Div Ontic Engineering and Manufacturing Uk Limited).
Key specifications for N197331-1: Component Quantity: 2; Nonsupply Items and Quantities: 76301 N197331-1 GEAR 2; Special Features: OUTER ROTOR CAST IRON GRADE 40;INNER ROTOR STEEL A.I.S.I. 8620;O/A DIA 1.4975;BORE DIA 0.500 IN.;O/A DIA INCLUDING KEYWAYS 0.632 IN.;2 KEYWAYS SET 90 DEG APART;WIDTH OF KEYWAY 0.095 IN. IN. 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.
NSN 4320-01-338-2277 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.