PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7603520Seal,plain Encased

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · NSN 5330-00-285-5953 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-285-5953 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-285-5953. Primary manufacturer part number: 7603520.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • Housing Bore Diameter: 4.499 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 3.000 INCHES NOMINAL IN
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Case Style: SQUARE
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather or Rubber Synthetic Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-285-5953, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, 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
NSN5330-00-285-5953
Primary Part Number7603520
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCombat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
StatusCANCELLED
Seal Width0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Housing Bore Diameter4.499 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Accommodated Shaft Diameter3.000 INCHES NOMINAL IN
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Case StyleSQUARE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4330-00-148-8561 INTERCHANGEABLE
Filter,fluid
5360-00-448-370955088 INTERCHANGEABLE
Spring,helical,extension
Telemechanics Inc
1650-00-474-3207DS-922065 INTERCHANGEABLE
Spring Assembly,compensator
Eaton Aerospace, Llc Dba Jackson South
5330-00-556-848955088 INTERCHANGEABLE
Seal,plain Encased
Altra Industrial Motion Corp.
6220-00-562-1708 INTERCHANGEABLE
Lens,light
5961-00-683-4182352-9013-000 INTERCHANGEABLE
Transistor
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6515-01-009-85971654G INTERCHANGEABLE
Suture,absorbable,surgical
Ethicon Us Llc Div Ethicon
2540-01-030-8058119404VN01 INTERCHANGEABLE
Cushion,seat Back,vehicular
Seats Inc Div Seats Incorporated
3040-01-235-8556 INTERCHANGEABLE
Shaft,straight
5995-01-332-175055088 INTERCHANGEABLE
Cable Assembly,radio Frequency
Semflex, Inc.
Cross-Reference Index
Part NumberManufacturer
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
1654G Oshkosh Corp (USA)
7603520 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
55088 Federal-Mogul Corp Chassis Products Div (USA)
1654G Oshkosh Defense Llc (USA)
L3197 American Standard Inc Westinghouse Air Brake Co Div (USA)
47029 Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
7603520 PRIMARY The Boeing Company (USA)
7603520 The Boeing Company (USA)
4493 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
4330-00-148-8561INTERCHANGEABLE
FILTER,FLUID
5360-00-448-3709INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
55088
1650-00-474-3207INTERCHANGEABLE
SPRING ASSEMBLY,COMPENSATOR
DS-922065
5330-00-556-8489INTERCHANGEABLE
SEAL,PLAIN ENCASED
55088
6220-00-562-1708INTERCHANGEABLE
LENS,LIGHT
5961-00-683-4182INTERCHANGEABLE
TRANSISTOR
352-9013-000
6515-01-009-8597INTERCHANGEABLE
SUTURE,ABSORBABLE,SURGICAL
1654G
2540-01-030-8058INTERCHANGEABLE
CUSHION,SEAT BACK,VEHICULAR
119404VN01
3040-01-235-8556INTERCHANGEABLE
SHAFT,STRAIGHT
5995-01-332-1750INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
55088
5805-01-355-3790INTERCHANGEABLE
TELEPHONE SET
458-05
5930-01-539-1493INTERCHANGEABLE
SWITCH,TOGGLE
55088

Frequently Asked Questions

What is NSN 5330-00-285-5953?

NSN 5330-00-285-5953 is a Seal,plain Encased, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-285-5953?

NSN 5330-00-285-5953 has 10 cross-referenced part numbers: 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 1654G (Oshkosh Corp), 7603520 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 55088 (Federal-Mogul Corp Chassis Products Div), 1654G (Oshkosh Defense Llc) and 5 more.

What NSN replaces 5330-00-285-5953?

There are 12 known substitutes for 5330-00-285-5953: 4330-00-148-8561, 5360-00-448-3709, 1650-00-474-3207 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7603520?

Key specifications for 7603520: Seal Width: 0.438 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Housing Bore Diameter: 4.499 INCHES NOMINAL IN; Sealing Element Style: ANGULAR; Accommodated Shaft Diameter: 3.000 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-285-5953 still in active supply?

NSN 5330-00-285-5953 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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