The Ring,piston, cataloged under National Stock Number 3040-00-910-4035, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Double Seal Ring Co. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-910-4035 |
| Primary Part Number | DS3506B |
| Item Name | Ring,piston |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Double Seal Ring Co |
| Status | ACTIVE |
| FSC Application Data | ACTUATING CYLINDER,INFLIGHT REFUELING,AIRCRAFT |
| Material Document and Classification | 66 AISI 410 FED STD 1ST MATERIAL RESPONSE AND SAE31410 NATIONAL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Joint Style | VERTICAL JOINT |
| Radial Wall Thickness | 0.0930 INCHES MINIMUM AND 0.1050 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Standard Bore Diameter | 1.122 INCHES IN |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| DS3506B PRIMARY | Double Seal Ring Co (USA) |
NSN 3040-00-910-4035 is a Ring,piston, manufactured by Double Seal Ring Co, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-910-4035 has 1 manufacturer part number on file: DS3506B (Double Seal Ring Co).
Key specifications for DS3506B: FSC Application Data: ACTUATING CYLINDER,INFLIGHT REFUELING,AIRCRAFT; Overall Width: 0.1220 INCHES MINIMUM AND 0.1230 INCHES MAXIMUM IN; Material Document and Classification: 66 AISI 410 FED STD 1ST MATERIAL RESPONSE AND SAE31410 NATIONAL SPEC 2ND MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE. 8 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.