PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

84001221Ring Set,piston

Woodward Hrt Inc · NSN 3040-01-349-9004 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-349-9004 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-349-9004. Primary manufacturer part number: 84001221.
Features
  • Ring Set,piston — FSC 3040
  • 3 verified cross-references
  • Primary manufacturer: Woodward Hrt Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 3040-01-349-9004, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Woodward Hrt Inc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing Set,piston
FSC / FSG3040 — No Item Name Available (FSG 30)
ManufacturersPacific Piston Ring Co Inc (CAGE 82151); Woodward Hrt Inc (CAGE 81873)
Technical Specifications
ParameterValue
NSN3040-01-349-9004
Primary Part Number84001221
Item NameRing Set,piston
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerWoodward Hrt Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5960-00-001-2970B5856S INTERCHANGEABLE
Electron Tube
Unisys Corporation Dba Unisys Corp
5845-00-019-907884001221 INTERCHANGEABLE
Guide Subassy
Sypris Electronics, Llc
5307-00-371-610711708 INTERCHANGEABLE
Stud,ball
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5305-00-930-126411708 INTERCHANGEABLE
Screw,machine
Naval Inventory Control Point Mechanicsburg
5330-00-950-197010-101949-12 INTERCHANGEABLE
Gasket
Amphenol Corp Div Amphenol Aerospace Operations
5935-01-135-262611708 INTERCHANGEABLE
Connector Assembly,electrical
Edo-Aire
5995-01-172-360721024371-101 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
5315-01-388-5767 INTERCHANGEABLE
Key,machine
4820-01-553-792311-708 INTERCHANGEABLE
Valve,relief,pressure and Temper
Actronics Incorporated Dba Actronics Inc
6515-01-574-0850317.62 INTERCHANGEABLE
Drill,twist,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
11708 Pacific Piston Ring Co Inc (USA)
84001221-101 Woodward Hrt Inc (USA)
84001221 PRIMARY Woodward Hrt Inc (USA)
Related Parts
5960-00-001-2970INTERCHANGEABLE
ELECTRON TUBE
B5856S
5845-00-019-9078INTERCHANGEABLE
GUIDE SUBASSY
84001221
5307-00-371-6107INTERCHANGEABLE
STUD,BALL
11708
5305-00-930-1264INTERCHANGEABLE
SCREW,MACHINE
11708
5330-00-950-1970INTERCHANGEABLE
GASKET
10-101949-12
5935-01-135-2626INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
11708
5995-01-172-3607INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
21024371-101
5315-01-388-5767INTERCHANGEABLE
KEY,MACHINE
4820-01-553-7923INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
11-708
6515-01-574-0850INTERCHANGEABLE
DRILL,TWIST,BONE
317.62
5120-01-654-1796INTERCHANGEABLE
SCREWDRIVER ATTACHMENT,SOCKET WR

Frequently Asked Questions

What is NSN 3040-01-349-9004?

NSN 3040-01-349-9004 is a Ring Set,piston, manufactured by Woodward Hrt Inc, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-349-9004?

NSN 3040-01-349-9004 has 3 cross-referenced part numbers: 11708 (Pacific Piston Ring Co Inc), 84001221-101 (Woodward Hrt Inc), 84001221 (Woodward Hrt Inc).

What NSN replaces 3040-01-349-9004?

There are 11 known substitutes for 3040-01-349-9004: 5960-00-001-2970, 5845-00-019-9078, 5307-00-371-6107 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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