The Ring,brake Piston,adjuster, cataloged under National Stock Number 1630-01-003-8923, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. The manufacturer of record is Meggitt Aircraft Braking Systems 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-01-003-8923 |
| Primary Part Number | 5002503 |
| Item Name | Ring,brake Piston,adjuster |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY QQ-A-225/8 OR QQ-A-200/8 COMP 6061 COND T6,0.620 IN. O/A LG,1.500 IN. O/A DIA,0.750 IN. DIA BORE THRU,1.500-16 UNJ-3A THD0.312 IN. LG,ANODIC COATED MIL-A-3625CL 1 TY 2,6 SLOTS EQUALLY SPACED 0.078 IN. W 0.188 IN. DP A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5002503 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 5002503 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
| 5002503 | 5/9 Secondary reference Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems |
NSN 1630-01-003-8923 is a Ring,brake Piston,adjuster, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
NSN 1630-01-003-8923 has 1 manufacturer part number on file: 5002503 (Meggitt Aircraft Braking Systems Corporation).
Key specifications for 5002503: General Characteristics Item Description: ALUMINUM ALLOY QQ-A-225/8 OR QQ-A-200/8 COMP 6061 COND T6,0.620 IN. O/A LG,1.500 IN. O/A DIA,0.750 IN. DIA BORE THRU,1.500-16 UNJ-3A THD0.312 IN. LG,ANODIC COATED MIL-A-3625CL 1 TY 2,6 SLOTS EQUALLY SPACED 0.078 IN. W 0.188 IN. DP A. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.