The Filter,hydraulic Assembly, cataloged under National Stock Number 4935-01-135-3085, is classified within Federal Supply Class 4935 (Guided Missile Maintenance, Repair, and Checkout Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4935-01-135-3085 |
| Primary Part Number | AH-9998-A12RWS |
| Item Name | Filter,hydraulic Assembly |
| FSC / FSG | 4935 / 49 — Guided Missile Maintenance, Repair, and Checkout Specialized Equipment |
| Manufacturer | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div |
| Status | ACTIVE |
| General Characteristics Item Description | OVERALL LENGTH 8.990 IN.; OPERATING PRESSURE 3,000 PSIG; BURST PRESSURE 7,500 PSIG MINIMUM; PROOF PRESSURE 4,500 PORM 100 PSIG; IMPULSE TESTS NEED NOT BE PERFORMED 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 |
|---|---|
| AH-9998-A12RWS PRIMARY | Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div (USA) |
| Reference | Meaning |
|---|---|
| 810AS1337-1 | 7/2 Vendor item drawing reference Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
NSN 4935-01-135-3085 is a Filter,hydraulic Assembly, manufactured by Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div, classified under FSC 4935, Guided Missile Maintenance, Repair, and Checkout Specialized Equipment. Status: active.
NSN 4935-01-135-3085 has 1 manufacturer part number on file: AH-9998-A12RWS (Pall Aeropower Corp Sub of Pall Corp Mectron Industries Div).
Key specifications for AH-9998-A12RWS: General Characteristics Item Description: OVERALL LENGTH 8.990 IN.; OPERATING PRESSURE 3,000 PSIG; BURST PRESSURE 7,500 PSIG MINIMUM; PROOF PRESSURE 4,500 PORM 100 PSIG; IMPULSE TESTS NEED NOT BE PERFORMED IN; Part Name Assigned by Controlling Agency: FILTER, HYDRAULIC ASSEMBLY; End Item Identification: AN/DSM 151B TEST SET. 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.