The Yoke,hydraulic Motor-Pump, cataloged under National Stock Number 4320-01-112-3956, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Haywardindl. Products, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-112-3956 |
| Primary Part Number | ST269-B-1MIL |
| Item Name | Yoke,hydraulic Motor-Pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | MANGANESE BRONZE,QQ-C-390-C3; QUANTITY REQUIRED 2 |
| 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 |
|---|---|
| ST269-B-1MIL PRIMARY | Haywardindl. Products, Inc. (USA) |
| ST050-0600F-11CA PIECE 8 | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ST050-0600F-11CA | D/9 Drawing number reference only Haywardindl. Products, Inc. |
NSN 4320-01-112-3956 is a Yoke,hydraulic Motor-Pump, manufactured by Haywardindl. Products, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-112-3956 has 2 manufacturer part numbers on file: ST269-B-1MIL (Haywardindl. Products, Inc.), ST050-0600F-11CA PIECE 8 (Haywardindl. Products, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-122-8227. Verify interchangeability with system specifications before substitution.
Key specifications for ST269-B-1MIL: General Characteristics Item Description: MANGANESE BRONZE,QQ-C-390-C3; QUANTITY REQUIRED 2; End Item Identification: DUPLEX STRAINER MODEL 50,TYPE 2,CLASS 2,MIL-S-17849D. 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.