NSN 4920-00-731-7972 · NIIN 007317972 · Part number SD5601-1
De Havilland Aircraft of Canada Limited · FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment · FSG 49 — Maintenance and Repair Shop Equipment · CAGE 71867
Government record, cited
NSN 4920-00-731-7972 — this item is cataloged by the U.S. Government under National Stock Number 4920-00-731-7972. Manufacturer of record part number: SD5601-1.
Also searched as4920-00-731-7972 ·
4920007317972 ·
NIIN 007317972 ·
00-731-7972 ·
FSC 4920 Aircraft Maintenance and Repair Shop Specialized Equipment · CAGE 71867 · SD5601-1
General Characteristics Item Description: C/O STAY BLOCK 2,BOLT 1,WING NUT 1,LOCK WASHER 1 AND ROLL PIN
2 manufacturer part numbers on file
Manufacturer of record: De Havilland Aircraft of Canada Limited
Identification
NSN: 4920-00-731-7972
NIIN: 007317972
FSC: 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: SD5601-1
Manufacturer: De Havilland Aircraft of Canada Limited
General Description
The Stay Block Assembly, cataloged under National Stock Number 4920-00-731-7972, 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 De Havilland Aircraft of Canada Limited. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Other items in FSC 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
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4920-00-001-1744 · Item name not on file
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4920-00-001-1745 · Item name not on file
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4920-00-001-1746 · Item name not on file
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4920-00-001-1747 · Item name not on file
4920-00-001-1748
4920-00-001-1748 · Item name not on file
Frequently Asked Questions
What is NSN 4920-00-731-7972?
NSN 4920-00-731-7972 is a Stay Block Assembly, manufactured by De Havilland Aircraft of Canada Limited, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4920-00-731-7972?
NSN 4920-00-731-7972 has 2 manufacturer part numbers on file: SD5601-1 (De Havilland Inc), SD5601-1 (De Havilland Aircraft of Canada Limited).
What are the specifications of SD5601-1?
Key specifications for SD5601-1: General Characteristics Item Description: C/O STAY BLOCK 2,BOLT 1,WING NUT 1,LOCK WASHER 1 AND ROLL PIN; End Item Identification: U/O DHC-4 AND AC-1,NHA C4GT1000. 1 specification is documented in the U.S. Government catalog.
Is NSN 4920-00-731-7972 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.