The Manifold,cover, cataloged under National Stock Number 4320-01-050-3263, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Pumps North America Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-050-3263 |
| Primary Part Number | S-1431DK |
| Item Name | Manifold,cover |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; 13.500 IN. O/A LG; 8.688 IN. H; 9.875 IN. W; W/8 BOLT HOLES 0.750 IN. ID EQUALLY SPACED; 6.812 IN. BOLT CIRCLE DIA 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 |
|---|---|
| SF-10395 ITMES 80X81X82 | Circor Pumps North America Llc (USA) |
| SF-10524 ITEM 79 | Circor Pumps North America Llc (USA) |
| S-1431DK PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| S-1431DK | 5/9 Secondary reference Siemens Energy, Inc. |
| SF-10524 | D/9 Drawing number reference only Circor Pumps North America Llc |
| SF-10524 ITEM 79 | 5/9 Secondary reference Siemens Energy, Inc. |
| SF-10524 | 5/9 Secondary reference Siemens Energy, Inc. |
| SF-10395 ITMES 80X81X82 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 4320-01-050-3263 is a Manifold,cover, manufactured by Circor Pumps North America Llc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-050-3263 has 3 manufacturer part numbers on file: SF-10395 ITMES 80X81X82 (Circor Pumps North America Llc), SF-10524 ITEM 79 (Circor Pumps North America Llc), S-1431DK (Circor Pumps North America Llc).
5 possible matches (shared part number, not a government interchangeability claim): 4320-01-050-3264, 4710-01-050-3343, 4710-01-050-3344. Verify interchangeability with system specifications before substitution.
Key specifications for S-1431DK: General Characteristics Item Description: STEEL; 13.500 IN. O/A LG; 8.688 IN. H; 9.875 IN. W; W/8 BOLT HOLES 0.750 IN. ID EQUALLY SPACED; 6.812 IN. BOLT CIRCLE DIA 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.