The O-Ring Set, cataloged under National Stock Number 5331-01-613-5506, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pro-Hydraulics Cc. Government technical data includes 3 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 | 5331-01-613-5506 |
| Primary Part Number | ESP SK-1 |
| Item Name | O-Ring Set |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pro-Hydraulics Cc |
| Status | ACTIVE |
| Component Quantity | 7 |
| Document Type | INDUSTRIAL CATALOG |
| End Item Name | MRAP RG31 |
| 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 |
|---|---|
| ESP SK-1 PRIMARY | Pro-Hydraulics Cc (ZAF) |
NSN 5331-01-613-5506 is a O-Ring Set, manufactured by Pro-Hydraulics Cc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-613-5506 has 1 manufacturer part number on file: ESP SK-1 (Pro-Hydraulics Cc).
Key specifications for ESP SK-1: Component Quantity: 7; Document Type: INDUSTRIAL CATALOG; End Item Name: MRAP RG31; Part Name Assigned by Controlling Agency: SEAL KIT 1. 3 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.