PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3477Seal Assembly

Industrial Technologies and Services Llc · NSN 2930-00-402-5571 · FSC 2930 · No Item Name Available
Verified by PartsTable
NSN 2930-00-402-5571 — this item is cataloged by the U.S. Government under National Stock Number 2930-00-402-5571. Primary manufacturer part number: 3477.
Features
  • Seal Assembly — FSC 2930
  • General Characteristics Item Description: CERAMIC SEAL AND SYNTHETIC RUBBER SEALS,STEEL SPRING HELICAL COMPRESSION;0.855 IN.OD;1.000 IN.O/A LG;0.360 IN.ID IN
  • 3 verified cross-references
  • Primary manufacturer: Industrial Technologies and Services Llc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Assembly, cataloged under National Stock Number 2930-00-402-5571, is classified within Federal Supply Class 2930 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Industrial Technologies and Services Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2930-00-402-5571
Primary Part Number3477
Item NameSeal Assembly
FSC / FSG2930 / 29 — No Item Name Available
ManufacturerIndustrial Technologies and Services Llc
StatusCANCELLED
General Characteristics Item DescriptionCERAMIC SEAL AND SYNTHETIC RUBBER SEALS,STEEL SPRING HELICAL COMPRESSION;0.855 IN.OD;1.000 IN.O/A LG;0.360 IN.ID IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5935-00-222-73191628A81286 INTERCHANGEABLE
Dummy Connector,receptacle
Lockheed Martin Corporation Div Rotary and Mission Systems
5310-00-266-4463 INTERCHANGEABLE
Nut,self-Locking,hexagon
4730-00-287-2184AS4863-16 INTERCHANGEABLE
Plug,pipe
Sae International Dba Sae International
5330-00-298-62102-16-53 INTERCHANGEABLE
Packing,preformed
Roper Industries Inc Roper Pump Co Div
2805-00-353-8833 INTERCHANGEABLE
Guide,valve Stem
3120-00-390-8975 INTERCHANGEABLE
Bearing,sleeve
1630-00-437-26813477 INTERCHANGEABLE
Spring,tail Wheel
Textron Aviation Inc
5935-00-540-3092 INTERCHANGEABLE
Connector,thermocouple
5331-00-580-658612340395 INTERCHANGEABLE
O-Ring
Am General Llc
4730-00-640-6330SAE J530 4-2 130137B INTERCHANGEABLE
Reducer,pipe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
3477 PRIMARY Industrial Technologies and Services Llc (USA)
3487 Industrial Technologies and Services Llc (USA)
21653 PRIMARY Industrial Technologies and Services Llc (USA)
Related Parts
5935-00-222-7319INTERCHANGEABLE
DUMMY CONNECTOR,RECEPTACLE
1628A81286
5310-00-266-4463INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
4730-00-287-2184INTERCHANGEABLE
PLUG,PIPE
AS4863-16
5330-00-298-6210INTERCHANGEABLE
PACKING,PREFORMED
2-16-53
2805-00-353-8833INTERCHANGEABLE
GUIDE,VALVE STEM
3120-00-390-8975INTERCHANGEABLE
BEARING,SLEEVE
1630-00-437-2681INTERCHANGEABLE
SPRING,TAIL WHEEL
3477
5935-00-540-3092INTERCHANGEABLE
CONNECTOR,THERMOCOUPLE
5331-00-580-6586INTERCHANGEABLE
O-RING
12340395
4730-00-640-6330INTERCHANGEABLE
REDUCER,PIPE
SAE J530 4-2 130137B
5950-00-754-6757INTERCHANGEABLE
TRANSFORMER,POWER
9030927
6240-00-945-7567INTERCHANGEABLE
LAMP,INCANDESCENT

Frequently Asked Questions

What is NSN 2930-00-402-5571?

NSN 2930-00-402-5571 is a Seal Assembly, manufactured by Industrial Technologies and Services Llc, classified under FSC 2930 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2930-00-402-5571?

NSN 2930-00-402-5571 has 3 cross-referenced part numbers: 3477 (Industrial Technologies and Services Llc), 3487 (Industrial Technologies and Services Llc), 21653 (Industrial Technologies and Services Llc).

What NSN replaces 2930-00-402-5571?

There are 12 known substitutes for 2930-00-402-5571: 5935-00-222-7319, 5310-00-266-4463, 4730-00-287-2184 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3477?

Key specifications for 3477: General Characteristics Item Description: CERAMIC SEAL AND SYNTHETIC RUBBER SEALS,STEEL SPRING HELICAL COMPRESSION;0.855 IN.OD;1.000 IN.O/A LG;0.360 IN.ID IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2930-00-402-5571 still in active supply?

NSN 2930-00-402-5571 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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