The Pump,rotary, cataloged under National Stock Number 4320-01-090-8318, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-090-8318 |
| Primary Part Number | B31K200H3 |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | TRIDENT PLANNED EQUIPMENT REPLACEMENT (TRIPER) AND ADVANCED EQUIPMENT REPAIR PROGRAM (AERP) PROCEDURES IAW NAVSUP WSS INST 4420.170 OPERATING PROCEDURE 3. INCLUDES BOTH L1/SS/Q3/Q5/SOC AND NON-L1/SS/Q3/Q5/SOC TRIPER/AERP COMPONENTS. TRIPER/AERP EQUIPMENT HAVE SPECIAL REQUIREMENTS BUT NO SPECIFIC MATERIAL CONTROL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| B31K200H3 | Naval Inventory Control Point Mechanicsburg (USA) |
| SG4812H3 | Naval Inventory Control Point Mechanicsburg (USA) |
| B31K200 | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| B31K200 | 5/9 Secondary reference Siemens Energy, Inc. |
| SG4812 | 3/1 Design control — primary reference Circor Pumps North America Llc |
NSN 4320-01-090-8318 is a Pump,rotary, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-090-8318 has 3 manufacturer part numbers on file: B31K200H3 (Naval Inventory Control Point Mechanicsburg), SG4812H3 (Naval Inventory Control Point Mechanicsburg), B31K200 (Circor Pumps North America Llc).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-159-4379. Verify interchangeability with system specifications before substitution.
Key specifications for B31K200H3: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: TRIDENT PLANNED EQUIPMENT REPLACEMENT (TRIPER) AND ADVANCED EQUIPMENT REPAIR PROGRAM (AERP) PROCEDURES IAW NAVSUP WSS INST 4420.170 OPERATING PROCEDURE 3. INCLUDES BOTH L1/SS/Q3/Q5/SOC AND NON-L1/SS/Q3/Q5/SOC TRIPER/AERP COMPONENTS. TRIPER/AERP EQUIPMENT HAVE SPECIAL REQUIREMENTS BUT NO SPECIFIC MATERIAL CONTROL. 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 4320-01-090-8318 has DEMIL Code B. 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.