The Ring,retaining, cataloged under National Stock Number 5325-01-155-5306, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Velan Valve Corp.. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-155-5306 |
| Primary Part Number | 8185-002-021 4IN |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Velan Valve Corp. |
| Status | ACTIVE |
| Material Document and Classification | ASTM A182, GRADE FGA, CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | STEEL COMP 410 |
| 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 |
|---|---|
| 7850-013 ITEM 13 4IN | Velan Valve Corp. (USA) |
| 8185-002-021 4IN PRIMARY | Velan Valve Corp. (USA) |
| Reference | Meaning |
|---|---|
| 8185-002-021 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5325-01-155-5306 is a Ring,retaining, manufactured by Velan Valve Corp., classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-155-5306 has 2 manufacturer part numbers on file: 7850-013 ITEM 13 4IN (Velan Valve Corp.), 8185-002-021 4IN (Velan Valve Corp.).
Key specifications for 8185-002-021 4IN: Material Document and Classification: ASTM A182, GRADE FGA, CLASS 2 ASSN STD SINGLE MATERIAL RESPONSE; Material: STEEL COMP 410. 2 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.