PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

70633Seal,plain Encased

Cummins Inc. · NSN 5330-00-311-2519 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-311-2519 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-311-2519. Primary manufacturer part number: 70633.
Features
  • Seal,plain Encased — FSC 5330
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Housing Bore Diameter: 1.250 INCHES NOMINAL IN
  • Seal Width: 0.313 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 0.750 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
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 5330-00-311-2519, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-311-2519
Primary Part Number70633
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Case StyleSQUARE
Sealing Element StyleANGULAR
Housing Bore Diameter1.250 INCHES NOMINAL IN
Seal Width0.313 INCHES NOMINAL IN
Accommodated Shaft Diameter0.750 INCHES NOMINAL IN
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3455-00-250-0778FX-28 INTERCHANGEABLE
Cutter,milling,end
Pohl Tool Co
1680-00-298-886270633 INTERCHANGEABLE
Ring,grooved
Aerocontrolex Group, Inc. Div Talley Actuators
5950-00-854-5660257699 INTERCHANGEABLE
Transformer,audio Frequency
Cae Usa Inc.
5998-00-860-13757063-3 INTERCHANGEABLE
Printed Wiring Board
Rockwell Collins, Inc. Dba Rc Displays Systems
5120-00-928-41267163A35 INTERCHANGEABLE
Blade,socket Head Screw Key
Mcmaster-Carr Supply Co
4820-01-141-6308A7433.001.130 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
3040-01-284-236580057 INTERCHANGEABLE
Connecting Link,rigid
M-B Companies, Inc
3040-01-341-16308-005-703-04 INTERCHANGEABLE
Plate,backing,brake
Rexnord Industries Llc Div Stearns
5930-01-533-113180-057 INTERCHANGEABLE
Switch,proximity
Eldec Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
80057 Gardner Denver Limited (GBR)
S2345-1 Cummins Inc. (USA)
6577ST Federal-Mogul Corp Government Sales Dept (USA)
70633 PRIMARY Cummins Inc. (USA)
80057 Hamworthy Belliss & Morcom Ltd (GBR)
Related Parts
3455-00-250-0778INTERCHANGEABLE
CUTTER,MILLING,END
FX-28
1680-00-298-8862INTERCHANGEABLE
RING,GROOVED
70633
5950-00-854-5660INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
257699
5998-00-860-1375INTERCHANGEABLE
PRINTED WIRING BOARD
7063-3
5120-00-928-4126INTERCHANGEABLE
BLADE,SOCKET HEAD SCREW KEY
7163A35
4820-01-141-6308INTERCHANGEABLE
DISK,VALVE
A7433.001.130
3040-01-284-2365INTERCHANGEABLE
CONNECTING LINK,RIGID
80057
3040-01-341-1630INTERCHANGEABLE
PLATE,BACKING,BRAKE
8-005-703-04
5930-01-533-1131INTERCHANGEABLE
SWITCH,PROXIMITY
80-057

Frequently Asked Questions

What is NSN 5330-00-311-2519?

NSN 5330-00-311-2519 is a Seal,plain Encased, manufactured by Cummins Inc., classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-311-2519?

NSN 5330-00-311-2519 has 5 cross-referenced part numbers: 80057 (Gardner Denver Limited), S2345-1 (Cummins Inc.), 6577ST (Federal-Mogul Corp Government Sales Dept), 70633 (Cummins Inc.), 80057 (Hamworthy Belliss & Morcom Ltd).

What NSN replaces 5330-00-311-2519?

There are 9 known substitutes for 5330-00-311-2519: 3455-00-250-0778, 1680-00-298-8862, 5950-00-854-5660 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 70633?

Key specifications for 70633: Case Style: SQUARE; Sealing Element Style: ANGULAR; Housing Bore Diameter: 1.250 INCHES NOMINAL IN; Seal Width: 0.313 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-311-2519 still in active supply?

NSN 5330-00-311-2519 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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