The Anchor Damper Ring, cataloged under National Stock Number 5331-01-465-1638, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-465-1638 |
| Primary Part Number | N-0181-EMP |
| Item Name | Anchor Damper Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems |
| Status | ACTIVE |
| Overall Diameter | 5.000 INCHES NOMINAL IN |
| Pressure Rating | ERR-060 |
| 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 |
|---|---|
| N-0181-EMP | Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems (USA) |
| Reference | Meaning |
|---|---|
| H87772-22 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-465-1638 is a Anchor Damper Ring, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-465-1638 has 1 manufacturer part number on file: N-0181-EMP (Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems).
Key specifications for N-0181-EMP: Overall Height: 0.197 INCHES NOMINAL IN; Overall Diameter: 5.000 INCHES NOMINAL IN; Pressure Rating: ERR-060; Special Features: INSIDE DIAMETER 4.000 INCHES; PACKING V RING 90 DEGS; 0.156 INCHES AT TOP OF V RING; MATERIAL SPECIFICATION - MIL-P-19918 COMP 312 OR 413 IN. 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.