The Arm,nose Ski, cataloged under National Stock Number 1630-01-237-7728, is classified within Federal Supply Class 1630 (Aircraft Wheel and Brake Systems) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1630-01-237-7728 |
| Item Name | Arm,nose Ski |
| FSC / FSG | 1630 / 16 — Aircraft Wheel and Brake Systems |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT SKI SYSTEM |
| General Characteristics Item Description | MATERIAL IS 4340 STEEL,PER MIL-S-5000,COND C-1;MAGNETIC INSPECT PER LACPROCESS SPEC 565;HEAT TREAT 200,000 TO220,000 PSI PER LAC PROCESS SPEC 522 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 380226-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1630-01-237-7728 is a Arm,nose Ski, classified under FSC 1630, Aircraft Wheel and Brake Systems. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 2815-01-416-4560. Verify interchangeability with system specifications before substitution.
Key specifications for 1630-01-237-7728: FSC Application Data: AIRCRAFT SKI SYSTEM; General Characteristics Item Description: MATERIAL IS 4340 STEEL,PER MIL-S-5000,COND C-1;MAGNETIC INSPECT PER LACPROCESS SPEC 565;HEAT TREAT 200,000 TO220,000 PSI PER LAC PROCESS SPEC 522; End Item Identification: LC-130 AIRCRAFT. 2 specifications are 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.
NSN 1630-01-237-7728 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.