The Strainer,sediment, cataloged under National Stock Number 4730-01-248-4012, 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 O. C. Keckley Company. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-248-4012 |
| Primary Part Number | 25158-A 1IN SW .033PERF |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | O. C. Keckley Company |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED SINGLE FILTERING MEDIA RESPONSE |
| Distance From Bottom of Body to Center of Inlet | 4.625 INCHES NOMINAL IN |
| Temp Rating | 850.0 FAHRENHEIT NOMINAL DEGF |
| First Intake Connection Type | SOCKET WELDING LINE |
| Perforation Quantity | 324.0 PER SQUARE INCH |
| Style Designator | Y STRAINER W/THREADED COVER |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS |
| Body Length | 5.000 INCHES NOMINAL IN |
| First Intake Nominal Inside Diameter | 1.000 INCHES IN |
| First Discharge Connection Relationship to Intake Connection | IDENTICAL TO FIRST INTAKE CONNECTION |
| Media for Which Designed | WATER |
| Material | STEEL BODY |
| Material | STEEL CORROSION RESISTING FILTERING MEDIUM |
| Perforation Diameter | 0.033 INCHES NOMINAL IN |
| Mounting Type | INLET CONNECTION AND OUTLET CONNECTION LINE |
| 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 |
|---|---|
| 25158-A 1IN SW .033PERF PRIMARY | O. C. Keckley Company (USA) |
| 25158-A 1IN | O. C. Keckley Company (USA) |
| Reference | Meaning |
|---|---|
| 25158-A | D/9 Drawing number reference only O. C. Keckley Company |
| SB-1IN-SWLD-.03 | C/1 Advisory reference — outside the item-of-supply concept O. C. Keckley Company |
NSN 4730-01-248-4012 is a Strainer,sediment, manufactured by O. C. Keckley Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-248-4012 has 2 manufacturer part numbers on file: 25158-A 1IN SW .033PERF (O. C. Keckley Company), 25158-A 1IN (O. C. Keckley Company).
4 possible matches (shared part number, not a government interchangeability claim): 4730-01-248-4222, 4730-01-259-2410, 4730-01-261-1089. Verify interchangeability with system specifications before substitution.
Key specifications for 25158-A 1IN SW .033PERF: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Distance From Bottom of Body to Center of Inlet: 4.625 INCHES NOMINAL IN; Temp Rating: 850.0 FAHRENHEIT NOMINAL DEGF; First Intake Connection Type: SOCKET WELDING LINE. 15 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.