PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

340603-3Seal,surge Box

Lockheed Martin Corp · NSN 5330-01-102-4944 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-102-4944 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-102-4944. Primary manufacturer part number: 340603-3.
Features
  • Seal,surge Box — FSC 5330
  • General Characteristics Item Description: PHENOLIC RESIN,HH-P-256 GRADE C TYPE 3; 3.750 IN. LG,3.120 IN. W,0.125 IN. THK IN
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,surge Box, cataloged under National Stock Number 5330-01-102-4944, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-102-4944
Primary Part Number340603-3
Item NameSeal,surge Box
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
General Characteristics Item DescriptionPHENOLIC RESIN,HH-P-256 GRADE C TYPE 3; 3.750 IN. LG,3.120 IN. W,0.125 IN. THK IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-288-97843406033 INTERCHANGEABLE
Elbow,pipe
Frink America Inc
Cross-Reference Index
Part NumberManufacturer
340603-3 PRIMARY Lockheed Martin Corp (USA)
Related Parts
4730-00-288-9784INTERCHANGEABLE
ELBOW,PIPE
3406033

Frequently Asked Questions

What is NSN 5330-01-102-4944?

NSN 5330-01-102-4944 is a Seal,surge Box, manufactured by Lockheed Martin Corp, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-102-4944?

NSN 5330-01-102-4944 has 1 cross-referenced part number: 340603-3 (Lockheed Martin Corp).

What NSN replaces 5330-01-102-4944?

There is 1 known substitute for 5330-01-102-4944: 4730-00-288-9784. Verify interchangeability with system specifications before substitution.

What are the specifications of 340603-3?

Key specifications for 340603-3: General Characteristics Item Description: PHENOLIC RESIN,HH-P-256 GRADE C TYPE 3; 3.750 IN. LG,3.120 IN. W,0.125 IN. THK IN; End Item Identification: AIRCRAFT MODEL C-130. 2 total characteristics are documented in the Federal Logistics Information System.

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