The Orifice,landing Gear Piston, cataloged under National Stock Number 4730-00-313-5735, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Goodrich Corporation. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-313-5735 |
| Primary Part Number | 8858A23 |
| Item Name | Orifice,landing Gear Piston |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Goodrich Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL MIL-S-5626,HEAT TREAT 34 TO 39 ROCKWELL C HARDNESS RATING,250 UIN. MACHINED SURFACE FINISH,DISK SHAPE,3.375-16 UN-3A THD OD,0.750 IN. LG,0.687 P 0.001 IN. ID ORIFICE,100 UIN. MACHINED SURFACE FINISH,ORIFICE,1ST END FLUSH,2ND 3.120 IN. ID BY 0.294 P 0.027 IN. DP COUNTER BORE AND 0.312 IN. W BY 0.20 IN. DP WRENCHING SLOTS LOCATED 180 DEG APART A |
| 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 |
|---|---|
| 8858A23 PRIMARY | Goodrich Corporation (USA) |
| Reference | Meaning |
|---|---|
| 8858A23 | 3/9 Design control — primary reference Goodrich Corporation Div Advanced Structures Landing Systems |
NSN 4730-00-313-5735 is a Orifice,landing Gear Piston, manufactured by Goodrich Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-313-5735 has 1 manufacturer part number on file: 8858A23 (Goodrich Corporation).
Key specifications for 8858A23: General Characteristics Item Description: STEEL MIL-S-5626,HEAT TREAT 34 TO 39 ROCKWELL C HARDNESS RATING,250 UIN. MACHINED SURFACE FINISH,DISK SHAPE,3.375-16 UN-3A THD OD,0.750 IN. LG,0.687 P 0.001 IN. ID ORIFICE,100 UIN. MACHINED SURFACE FINISH,ORIFICE,1ST END FLUSH,2ND 3.120 IN. ID BY 0.294 P 0.027 IN. DP COUNTER BORE AND 0.312 IN. W BY 0.20 IN. DP WRENCHING SLOTS LOCATED 180 DEG APART A. 1 specification is 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.