The Sleeve,shaft,pump, cataloged under National Stock Number 4320-01-281-4358, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 5 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-281-4358 |
| Primary Part Number | 11898-C-18A |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Body Outside Diameter | 2.5000 INCHES NOMINAL IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | QQ-N-286-CL.A-HF-AH FED SPEC 1ST MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 1.8750 INCHES NOMINAL IN |
| Material | NICKEL ALLOY AND COPPER ALLOY AND ALUMINUM ALLOY OVERALL |
| 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 |
|---|---|
| 11898-C-18A PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 175S8JSX1 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 175S8JSX1 | 3/9 Design control — primary reference U.S. Government activity |
| 11898-C-18 | 5/9 Secondary reference U.S. Government activity |
| C-175S8JSX1 | 5/9 Secondary reference U.S. Government activity |
NSN 4320-01-281-4358 is a Sleeve,shaft,pump, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-281-4358 has 1 manufacturer part number on file: 11898-C-18A (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 11898-C-18A: Body Outside Diameter: 2.5000 INCHES NOMINAL IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES; Material Document and Classification: QQ-N-286-CL.A-HF-AH FED SPEC 1ST MATERIAL RESPONSE OVERALL; Overall Length: 6.0000 INCHES MINIMUM AND 6.5000 INCHES MAXIMUM IN. 5 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.