The Adapter,water Pump, cataloged under National Stock Number 2930-00-167-0442, is classified within Federal Supply Class 2930 (Engine Cooling System Components, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Weldon Pump Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2930-00-167-0442 |
| Primary Part Number | P391 |
| Item Name | Adapter,water Pump |
| FSC / FSG | 2930 / 29 — Engine Cooling System Components, Nonaircraft |
| Manufacturer | Weldon Pump Llc |
| Status | ACTIVE |
| General Characteristics Item Description | BRASS 9/16 IN. THK; 2-1/8 IN. OD 11/32 IN. ID; RECESSED CENTER 1-1/4 IN. DIA 7/16 IN. DEEP; 4 1/8 IN. HOLES DRILLED RADIAL IN RECESS SPACED BETWEEN 3/16 IN. BOLT HOLES SPACED EQUALLY ON 1-3/4 IN. BC IN |
| 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 |
|---|---|
| P391 PRIMARY | Weldon Pump Llc (USA) |
| Reference | Meaning |
|---|---|
| P391 | 5/9 Secondary reference Weldon Tool Co the |
NSN 2930-00-167-0442 is a Adapter,water Pump, manufactured by Weldon Pump Llc, classified under FSC 2930, Engine Cooling System Components, Nonaircraft. Status: active.
NSN 2930-00-167-0442 has 1 manufacturer part number on file: P391 (Weldon Pump Llc).
3 possible matches (shared part number, not a government interchangeability claim): 5330-00-171-3593, 5330-00-492-7552, 4320-01-300-4175. Verify interchangeability with system specifications before substitution.
Key specifications for P391: General Characteristics Item Description: BRASS 9/16 IN. THK; 2-1/8 IN. OD 11/32 IN. ID; RECESSED CENTER 1-1/4 IN. DIA 7/16 IN. DEEP; 4 1/8 IN. HOLES DRILLED RADIAL IN RECESS SPACED BETWEEN 3/16 IN. BOLT HOLES SPACED EQUALLY ON 1-3/4 IN. BC IN. 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.