NSN 4410-01-087-7977 — this item is cataloged by the U.S. Government under National Stock Number 4410-01-087-7977. Manufacturer of record part number: NY 570-91 223.
Also searched as4410-01-087-7977 ·
4410010877977 ·
NIIN 010877977 ·
01-087-7977 ·
FSC 4410 Industrial Boilers · CAGE 23230 · NY 570-91 223
Manufacturer: Amec Foster Wheeler North America Corp. Dba Foster Wheeler
General Description
The Collar,peep Door, cataloged under National Stock Number 4410-01-087-7977, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Amec Foster Wheeler North America Corp. Dba Foster Wheeler. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Collar,peep Door
FSC / FSG
4410 — Industrial Boilers (FSG 44)
Manufacturers
Amec Foster Wheeler North America Corp. Dba Foster Wheeler (CAGE 23230)
Technical Specifications
Parameter
Value
NSN
4410-01-087-7977
Primary Part Number
NY 570-91 223
Item Name
Collar,peep Door
FSC / FSG
4410 / 44 — Industrial Boilers
Manufacturer
Amec Foster Wheeler North America Corp. Dba Foster Wheeler
Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
Reference documents
Reference
Meaning
NY 570-91 223
5/9Secondary reference
Ge Steam Power Inc Dba Ge Steam Power, Inc Div General Electric
No interchangeability data on file.
Other items in FSC 4410 — Industrial Boilers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4410-00-001-1563
4410-00-001-1563 · Item name not on file
4410-00-004-9097
4410-00-004-9097 · Item name not on file
4410-00-004-9098
CONTROL,PRESSURE
4410-00-004-9098
CONTROL,PRESSURE
4410-00-004-9099
CONTACTOR
4410-00-008-8896
HEATER,WATER,LIQUID FUEL
4410-00-010-8040
4410-00-010-8040 · Item name not on file
4410-00-011-8797
4410-00-011-8797 · Item name not on file
Frequently Asked Questions
What is NSN 4410-01-087-7977?
NSN 4410-01-087-7977 is a Collar,peep Door, manufactured by Amec Foster Wheeler North America Corp. Dba Foster Wheeler, classified under FSC 4410, Industrial Boilers. Status: active.
What part numbers are listed for NSN 4410-01-087-7977?
NSN 4410-01-087-7977 has 1 manufacturer part number on file: NY 570-91 223 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler).
Is NSN 4410-01-087-7977 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.