NSN 4310-01-203-3426 · NIIN 012033426 · Part number 20335-H PIECE 12
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa · FSC 4310 — Compressors and Vacuum Pumps · FSG 43 — Pumps and Compressors · CAGE 04537
Government record, cited
NSN 4310-01-203-3426 — this item is cataloged by the U.S. Government under National Stock Number 4310-01-203-3426. Manufacturer of record part number: 20335-H PIECE 12.
Also searched as4310-01-203-3426 ·
4310012033426 ·
NIIN 012033426 ·
01-203-3426 ·
FSC 4310 Compressors and Vacuum Pumps · CAGE 04537 · 20335-H PIECE 12
Material Document and Classification: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE
Material: COPPER ALLOY 836
Fabrication Method: CAST
1 manufacturer part number on file
Manufacturer of record: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Identification
NSN: 4310-01-203-3426
NIIN: 012033426
FSC: 4310 — Compressors and Vacuum Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 20335-H PIECE 12
Manufacturer: Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
General Description
The Connecting Rod,piston, cataloged under National Stock Number 4310-01-203-3426, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa. Government technical data includes 3 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.
Technical Specifications
Parameter
Value
NSN
4310-01-203-3426
Primary Part Number
20335-H PIECE 12
Item Name
Connecting Rod,piston
FSC / FSG
4310 / 43 — Compressors and Vacuum Pumps
Manufacturer
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa
Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa (USA)
No interchangeability data on file.
Other items in FSC 4310 — Compressors and Vacuum Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4310-00-000-0050
COMPRESSOR UNIT,RECIPROCATING
4310-00-001-0059
4310-00-001-0059 · Item name not on file
4310-00-001-2044
MOUNTING PAD,TANK,PRESSURE
4310-00-001-3477
PARTS KIT,VACUUM PUMP
4310-00-001-3493
VACUUM PUMP,ROTARY
4310-00-001-6194
4310-00-001-6194 · Item name not on file
4310-00-001-6381
4310-00-001-6381 · Item name not on file
4310-00-001-7755
PARTS KIT,VACUUM PUMP
Frequently Asked Questions
What is NSN 4310-01-203-3426?
NSN 4310-01-203-3426 is a Connecting Rod,piston, manufactured by Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
What part numbers are listed for NSN 4310-01-203-3426?
NSN 4310-01-203-3426 has 1 manufacturer part number on file: 20335-H PIECE 12 (Atwood & Morrill Co., Inc. Dba Weir Valves and Controls Usa).
What are the specifications of 20335-H PIECE 12?
Key specifications for 20335-H PIECE 12: Material Document and Classification: ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE; Material: COPPER ALLOY 836; Fabrication Method: CAST. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4310-01-203-3426 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.