The Adapter Assy,indica, cataloged under National Stock Number 6610-00-993-5601, is classified within Federal Supply Class 6610 (Flight Instruments) of the Instruments and Laboratory Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Catalog Facts
Item Name
Adapter Assy,indica
FSC / FSG
6610 — Flight Instruments (FSG 66)
Technical Specifications
Parameter
Value
NSN
6610-00-993-5601
Item Name
Adapter Assy,indica
FSC / FSG
6610 / 66 — Flight Instruments
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-01-266-8437POSSIBLE MATCH
NUT
Possible match (shared part number)
1630-01-399-77532-1565POSSIBLE MATCH
CYLINDER ASSEMBLY,HYDRAULIC BRAK
Possible match (shared part number)Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5905-01-579-1021310-8353971 ITEM NO 2POSSIBLE MATCH
RESISTOR,VARIABLE,WIRE WOUND,NON
Possible match (shared part number)Naval Sea Systems Command
8145-01-597-15172530-10506POSSIBLE MATCH
CASE,TEMPERATURE CONTROLLED
Possible match (shared part number)Bound Tree Medical Llc Div Bound Tree Medical
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
21565
3/2Design control — primary reference
U.S. Government activity
Related Parts
5310-01-266-8437POSSIBLE MATCH
NUT
1630-01-399-7753POSSIBLE MATCH
CYLINDER ASSEMBLY,HYDRAULIC BRAK
2-1565
5905-01-579-1021POSSIBLE MATCH
RESISTOR,VARIABLE,WIRE WOUND,NON
310-8353971 ITEM NO 2
8145-01-597-1517POSSIBLE MATCH
CASE,TEMPERATURE CONTROLLED
2530-10506
Frequently Asked Questions
What is NSN 6610-00-993-5601?
NSN 6610-00-993-5601 is a Adapter Assy,indica, classified under FSC 6610, Flight Instruments. Status: active.
What NSN replaces 6610-00-993-5601?
4 possible matches (shared part number, not a government interchangeability claim): 5310-01-266-8437, 1630-01-399-7753, 5905-01-579-1021. Verify interchangeability with system specifications before substitution.
Is NSN 6610-00-993-5601 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.