PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

500291Seal,plain Encased

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 5330-00-559-8987 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-559-8987 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-559-8987. Primary manufacturer part number: 500291.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 1.500 INCHES NOMINAL IN
  • Accommodated Shaft Diameter: 0.875 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Seal Width: 0.437 INCHES NOMINAL IN
  • Material: LEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
  • Sealing Element Style: ANGULAR
  • 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 5330-00-559-8987, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-559-8987
Primary Part Number500291
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusACTIVE
Housing Bore Diameter1.500 INCHES NOMINAL IN
Accommodated Shaft Diameter0.875 INCHES NOMINAL IN
Case StyleSQUARE
Seal Width0.437 INCHES NOMINAL IN
MaterialLEATHER OR RUBBER SYNTHETIC SEALING ELEMENT
Sealing Element StyleANGULAR
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2840-00-015-1665500291 INTERCHANGEABLE
Bracket,ignition Exciter,turbine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5905-00-114-2744 INTERCHANGEABLE
Resistor,fixed,composition
5330-00-792-621801136001 INTERCHANGEABLE
Packing,preformed
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
3020-01-392-247450029-1 INTERCHANGEABLE
Gear,spur
Morpac Industries, Inc Div Actuator
5310-01-551-7776 INTERCHANGEABLE
Washer,lock
2990-01-633-9663503008 INTERCHANGEABLE
Lever Assembly,power-Speed Contr
Brp Us Inc
6685-01-662-5365500291 INTERCHANGEABLE
Transmitter,temperature,electric
Steyr Motors North America, Inc.
Cross-Reference Index
Part NumberManufacturer
500291 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
500291 CAGE 00000
Related Parts
2840-00-015-1665INTERCHANGEABLE
BRACKET,IGNITION EXCITER,TURBINE
500291
5905-00-114-2744INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5330-00-792-6218INTERCHANGEABLE
PACKING,PREFORMED
01136001
3020-01-392-2474INTERCHANGEABLE
GEAR,SPUR
50029-1
5310-01-551-7776INTERCHANGEABLE
WASHER,LOCK
2990-01-633-9663INTERCHANGEABLE
LEVER ASSEMBLY,POWER-SPEED CONTR
503008
6685-01-662-5365INTERCHANGEABLE
TRANSMITTER,TEMPERATURE,ELECTRIC
500291

Frequently Asked Questions

What is NSN 5330-00-559-8987?

NSN 5330-00-559-8987 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 5330-00-559-8987?

NSN 5330-00-559-8987 has 2 cross-referenced part numbers: 500291 (U S Army Tank Automotive Command Amsta-Im-Mm), 500291.

What NSN replaces 5330-00-559-8987?

There are 7 known substitutes for 5330-00-559-8987: 2840-00-015-1665, 5905-00-114-2744, 5330-00-792-6218 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 500291?

Key specifications for 500291: Housing Bore Diameter: 1.500 INCHES NOMINAL IN; Accommodated Shaft Diameter: 0.875 INCHES NOMINAL IN; Case Style: SQUARE; Seal Width: 0.437 INCHES NOMINAL IN. 9 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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