PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7748733Seal,plain Encased

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5330-00-840-3273 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-840-3273 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-840-3273. Primary manufacturer part number: 7748733.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
  • Accommodated Shaft Diameter: 5.750 INCHES NOMINAL IN
  • Material: STEEL CASE
  • Material: LEATHER SEALING ELEMENT
  • Case Style: SQUARE
  • Housing Bore Diameter: 6.630 INCHES MINIMUM AND 6.634 INCHES MAXIMUM IN
  • Sealing Element Style: ANGULAR
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 5330-00-840-3273, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-840-3273
Primary Part Number7748733
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Seal Width0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN
Accommodated Shaft Diameter5.750 INCHES NOMINAL IN
MaterialSTEEL CASE
MaterialLEATHER SEALING ELEMENT
Case StyleSQUARE
Housing Bore Diameter6.630 INCHES MINIMUM AND 6.634 INCHES MAXIMUM IN
Sealing Element StyleANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-242-2205ASTM 22F INTERCHANGEABLE
Thermometer,self-Indicating
American Society for Testing and Materials Dba Astm International
5950-00-279-403055447 INTERCHANGEABLE
Coil Assembly,electrical
Cae Inc
1650-00-786-709655447 INTERCHANGEABLE
Plate,retaining,shoe
Parker Hannifin Corporation Div Hydraulic Systems Division
4820-01-025-770655447 INTERCHANGEABLE
Float,valve
Spirax Sarco Inc Dba Spirax Sarco
5340-01-360-69255-5447 INTERCHANGEABLE
Plate,mounting
Spectrum Microwave, Inc.
Cross-Reference Index
Part NumberManufacturer
55447 Federal-Mogul Corp Chassis Products Div (USA)
5330008403273 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
7748733 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
55447K Federal-Mogul Corp Government Sales Dept (USA)
Related Parts
6685-00-242-2205INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
ASTM 22F
5950-00-279-4030INTERCHANGEABLE
COIL ASSEMBLY,ELECTRICAL
55447
1650-00-786-7096INTERCHANGEABLE
PLATE,RETAINING,SHOE
55447
4820-01-025-7706INTERCHANGEABLE
FLOAT,VALVE
55447
5340-01-360-6925INTERCHANGEABLE
PLATE,MOUNTING
5-5447

Frequently Asked Questions

What is NSN 5330-00-840-3273?

NSN 5330-00-840-3273 is a Seal,plain Encased, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-840-3273?

NSN 5330-00-840-3273 has 4 cross-referenced part numbers: 55447 (Federal-Mogul Corp Chassis Products Div), 5330008403273 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 7748733 (U S Army Tank Automotive Command Amsta-Im-Mm), 55447K (Federal-Mogul Corp Government Sales Dept).

What NSN replaces 5330-00-840-3273?

There are 5 known substitutes for 5330-00-840-3273: 6685-00-242-2205, 5950-00-279-4030, 1650-00-786-7096 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7748733?

Key specifications for 7748733: Seal Width: 0.609 INCHES MINIMUM AND 0.641 INCHES MAXIMUM IN; Accommodated Shaft Diameter: 5.750 INCHES NOMINAL IN; Material: STEEL CASE; Material: LEATHER SEALING ELEMENT. 7 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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