The Strainer Element,sediment, cataloged under National Stock Number 4730-01-331-6672, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Haywardindl. Products, Inc.. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-331-6672 |
| Primary Part Number | ST91181 |
| Item Name | Strainer Element,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Haywardindl. Products, Inc. |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED |
| Style Designator | CYLINDRICAL |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| ST91181 PRIMARY | Haywardindl. Products, Inc. (USA) |
| ST-TA-F-B REVC-PC-10 2IN | Haywardindl. Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| ST-TA-F-B | D/9 Drawing number reference only Haywardindl. Products, Inc. |
NSN 4730-01-331-6672 is a Strainer Element,sediment, manufactured by Haywardindl. Products, Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-331-6672 has 2 manufacturer part numbers on file: ST91181 (Haywardindl. Products, Inc.), ST-TA-F-B REVC-PC-10 2IN (Haywardindl. Products, Inc.).
5 possible matches (shared part number, not a government interchangeability claim): 4330-01-332-0258, 4330-01-332-0259, 4330-01-333-8385. Verify interchangeability with system specifications before substitution.
Key specifications for ST91181: Filtering Media Design: PERFORATED; Style Designator: CYLINDRICAL; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE; Material: NICKEL ALLOY. 4 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.
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.