PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7439Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-477-6747 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-477-6747 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-477-6747. Primary manufacturer part number: 7439.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.187 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 36000 FEET PER MINUTE FT
  • Surface Treatment: PLASTIC CASE
  • Material: STEEL CASE
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 0.750 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-477-6747, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-477-6747
Primary Part Number7439
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Seal Width0.187 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed36000 FEET PER MINUTE FT
Surface TreatmentPLASTIC CASE
MaterialSTEEL CASE
Case StyleSQUARE
Sealing Element StyleANGULAR
Accommodated Shaft Diameter0.750 INCHES NOMINAL IN
Housing Bore Diameter1.250 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Outside Diameter1.254 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5815-00-125-49097439 INTERCHANGEABLE
Bar
Telemechanics Inc
1650-00-138-33367439 INTERCHANGEABLE
Lap Assembly,cylinder,shuttle VA
The Boeing Company Div Defense
5975-00-622-99668191332 INTERCHANGEABLE
Plate,wall,electrical
Us Army Aviation and Missile Command
3020-01-449-23817439 INTERCHANGEABLE
Gear,spur
Sew-Eurodrive, Inc.
Cross-Reference Index
Part NumberManufacturer
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
7439HMS1 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
7439 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
5815-00-125-4909INTERCHANGEABLE
BAR
7439
1650-00-138-3336INTERCHANGEABLE
LAP ASSEMBLY,CYLINDER,SHUTTLE VA
7439
5975-00-622-9966INTERCHANGEABLE
PLATE,WALL,ELECTRICAL
8191332
3020-01-449-2381INTERCHANGEABLE
GEAR,SPUR
7439

Frequently Asked Questions

What is NSN 5330-00-477-6747?

NSN 5330-00-477-6747 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-477-6747?

NSN 5330-00-477-6747 has 3 cross-referenced part numbers: 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 7439HMS1 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 7439 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-477-6747?

There are 4 known substitutes for 5330-00-477-6747: 5815-00-125-4909, 1650-00-138-3336, 5975-00-622-9966 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7439?

Key specifications for 7439: Seal Width: 0.187 INCHES NOMINAL IN; Accommodated Shaft Maximum Rated Speed: 36000 FEET PER MINUTE FT; Surface Treatment: PLASTIC CASE; Material: STEEL CASE. 10 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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