The Fixture,aircraft Maintenance, cataloged under National Stock Number 4920-01-159-9597, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 2 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 | 4920-01-159-9597 |
| Primary Part Number | GS20549-1 |
| Item Name | Fixture,aircraft Maintenance |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Reference Data and Literature | 1J-B52 |
| Functional Description | TURBINE BYPASS PRESSURE TEST CAP |
| 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 |
|---|---|
| GS20549-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4920-01-159-9597 is a Fixture,aircraft Maintenance, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-159-9597 has 1 manufacturer part number on file: GS20549-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for GS20549-1: Reference Data and Literature: 1J-B52; Special Features: CAPS TURBINE BYPASS PORT DURING LEAKAGE AND PROFF PRESSURE TESTS DURING OVERHAUL OF AIR CYCLE MACHINE; C/O 4 IN. DIA PLATE WITH 6 HOLES FOR SCREWS; INSIDE HOLES IS PRE-FORMED PACKING GROOVE WITH PREFORMED PACKING INCLUDED IN; Functional Description: TURBINE BYPASS PRESSURE TEST CAP; End Item Identification: B-52G/H ACFT AGE. G. 2 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.