The Ring,wearing, cataloged under National Stock Number 4320-00-336-5359, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4320-00-336-5359 |
| Primary Part Number | 13774P |
| Item Name | Ring,wearing |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | ROUND INSIDE RIGHT CORNER |
| Distance Between Flanges | 0.740 INCHES NOMINAL IN |
| Corner Radius | 0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN |
| Body Style | INTERNAL FLANGE W/EXTERNAL LOCKING FLANGE |
| Distance From End | 0.421 INCHES NOMINAL IN |
| Body Outside Diameter | 7.000 INCHES NOMINAL IN |
| End to Flange Distance | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | MIL-B-16261,GRADE 3-CANCELED MIL SPEC SINGLE MATERIAL RESPONSE |
| Internal Flange Inside Diameter | 5.250 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.330 INCHES NOMINAL IN |
| Distance Below Centerline | 0.312 INCHES NOMINAL IN |
| Body Inside Diameter | 6.215 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.330 INCHES NOMINAL IN |
| Smallest External Anchor Flange Radius | 3.500 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Internal Flange Width | 0.310 INCHES NOMINAL IN |
| Largest External Anchor Flange Radius | 4.000 INCHES NOMINAL 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 |
|---|---|
| 13774P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 13774P | 3/9 Design control — primary reference U.S. Government activity |
NSN 4320-00-336-5359 is a Ring,wearing, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-336-5359 has 1 manufacturer part number on file: 13774P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 13774P: Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: ROUND INSIDE RIGHT CORNER. 20 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.