The Head Assembly,pump, cataloged under National Stock Number 4320-00-375-4898, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Viking Pump, Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-375-4898 |
| Primary Part Number | 3-371-800-60A |
| Item Name | Head Assembly,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Viking Pump, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST BRONZE QQ-B-691-6X HEAD,STEEL IDLER PIN,COLD DRAWN STEEL SAE 1040 HEAD LOCATING PIN |
| 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 |
|---|---|
| BA172PC18-22-45 | Viking Pump, Inc (USA) |
| 3-371-800-60A PRIMARY | Viking Pump, Inc (USA) |
| Reference | Meaning |
|---|---|
| BA783 | D/9 Drawing number reference only Viking Pump, Inc |
| BA783PC18-22-45 | 5/9 Secondary reference Viking Pump, Inc |
NSN 4320-00-375-4898 is a Head Assembly,pump, manufactured by Viking Pump, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-375-4898 has 2 manufacturer part numbers on file: BA172PC18-22-45 (Viking Pump, Inc), 3-371-800-60A (Viking Pump, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4320-00-915-9392. Verify interchangeability with system specifications before substitution.
Key specifications for 3-371-800-60A: General Characteristics Item Description: CAST BRONZE QQ-B-691-6X HEAD,STEEL IDLER PIN,COLD DRAWN STEEL SAE 1040 HEAD LOCATING PIN. 1 specification is 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.