PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25078Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-771-5909 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-771-5909 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-771-5909. Primary manufacturer part number: 25078.
Features
  • Seal,plain Encased — FSC 5330
  • Sealing Element Style: ANGULAR-EXTERNAL
  • Outside Diameter: 2.492 INCHES NOMINAL IN
  • Housing Bore Diameter: 3.671 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Accommodated Shaft Diameter: 2.492 INCHES NOMINAL IN
  • Material: LEATHER SEALING ELEMENT
  • Seal Width: 0.500 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-771-5909, 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 7 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-771-5909
Primary Part Number25078
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Sealing Element StyleANGULAR-EXTERNAL
Outside Diameter2.492 INCHES NOMINAL IN
Housing Bore Diameter3.671 INCHES NOMINAL IN
Case StyleSQUARE
Accommodated Shaft Diameter2.492 INCHES NOMINAL IN
MaterialLEATHER SEALING ELEMENT
Seal Width0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-050-3345 INTERCHANGEABLE
Nut,self-Locking,hexagon
5910-00-234-2567212678-3 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5910-00-235-0892 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
4730-00-630-0593MLV91313Z INTERCHANGEABLE
Clamp,hose
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5310-01-110-5257 INTERCHANGEABLE
Nut,plain,cap
2920-01-137-8043 INTERCHANGEABLE
Wire Assembly
3040-01-203-774325078 INTERCHANGEABLE
Plate,backing,brake
Twg Canada Consolidated Inc
3960-01-270-487225078 INTERCHANGEABLE
Cam,elevator
Kone Inc.
5985-01-272-366511437809-3 INTERCHANGEABLE
Coupler,directional
Us Army Aviation and Missile Command
4720-01-540-6274 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
D20616-36 International Engineering Inc (USA)
25078 PRIMARY Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
1-249X322 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
5310-00-050-3345INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5910-00-234-2567INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
212678-3
5910-00-235-0892INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
4730-00-630-0593INTERCHANGEABLE
CLAMP,HOSE
MLV91313Z
5310-01-110-5257INTERCHANGEABLE
NUT,PLAIN,CAP
2920-01-137-8043INTERCHANGEABLE
WIRE ASSEMBLY
3040-01-203-7743INTERCHANGEABLE
PLATE,BACKING,BRAKE
25078
3960-01-270-4872INTERCHANGEABLE
CAM,ELEVATOR
25078
5985-01-272-3665INTERCHANGEABLE
COUPLER,DIRECTIONAL
11437809-3
4720-01-540-6274INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
5930-01-549-6170INTERCHANGEABLE
SWITCH,TOGGLE
0121-0010
5305-01-592-6740INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
20097-6F-12B

Frequently Asked Questions

What is NSN 5330-00-771-5909?

NSN 5330-00-771-5909 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 5330-00-771-5909?

NSN 5330-00-771-5909 has 3 cross-referenced part numbers: D20616-36 (International Engineering Inc), 25078 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 1-249X322 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-771-5909?

There are 12 known substitutes for 5330-00-771-5909: 5310-00-050-3345, 5910-00-234-2567, 5910-00-235-0892 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 25078?

Key specifications for 25078: Sealing Element Style: ANGULAR-EXTERNAL; Outside Diameter: 2.492 INCHES NOMINAL IN; Housing Bore Diameter: 3.671 INCHES NOMINAL IN; Case Style: SQUARE. 8 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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