NSN 5999-01-189-6853 · NIIN 011896853 · Part number 20210-D PIECE 4
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 04537
Government record, cited
NSN 5999-01-189-6853 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-189-6853. Manufacturer of record part number: 20210-D PIECE 4.
Also searched as5999-01-189-6853 ·
5999011896853 ·
NIIN 011896853 ·
01-189-6853 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 04537 · 20210-D PIECE 4
Manufacturer of record: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Identification
NSN: 5999-01-189-6853
NIIN: 011896853
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 20210-D PIECE 4
Manufacturer: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
General Description
The Seat,spring Upper, cataloged under National Stock Number 5999-01-189-6853, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5999-01-189-6853
Primary Part Number
20210-D PIECE 4
Item Name
Seat,spring Upper
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
No interchangeability data on file.
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-189-6853?
NSN 5999-01-189-6853 is a Seat,spring Upper, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-189-6853?
NSN 5999-01-189-6853 has 1 manufacturer part number on file: 20210-D PIECE 4 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa).
What are the specifications of 20210-D PIECE 4?
Key specifications for 20210-D PIECE 4: End Item Identification: MISCELLANEOUS ELECTRICAL AND ELECTRONIC EQUIPMENT. 0 specifications are documented in the U.S. Government catalog.
Is NSN 5999-01-189-6853 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.