PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6659Seal,plain Encased

893 Mfg, Llc · NSN 5330-01-211-7271 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-211-7271 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-211-7271. Primary manufacturer part number: 6659.
Features
  • Seal,plain Encased — FSC 5330
  • Housing Bore Diameter: 2.502 INCHES NOMINAL IN
  • Seal Width: 0.250 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Material Document and Classification: B-86, CAGE 01212 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
  • Accommodated Shaft Diameter: 1.750 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-211-7271, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is 893 Mfg, Llc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 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
NSN5330-01-211-7271
Primary Part Number6659
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
Manufacturer893 Mfg, Llc
StatusCANCELLED
Housing Bore Diameter2.502 INCHES NOMINAL IN
Seal Width0.250 INCHES NOMINAL IN
Case StyleSQUARE
Material Document and ClassificationB-86, CAGE 01212 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEALING ELEMENT
Accommodated Shaft Diameter1.750 INCHES NOMINAL IN
Sealing Element StyleANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5945-00-007-0637970005-1 INTERCHANGEABLE
Solenoid,electrical
Raytheon Company Dba Raytheon
5360-00-038-8941 INTERCHANGEABLE
Spring,flat
5995-00-059-46700594670 INTERCHANGEABLE
Cable Assembly,radio Frequency
Wire-Pro, Inc Dba Wpi-Salem Division
5133-00-061-628644479 INTERCHANGEABLE
Drill,twist
Greenfield Industries Inc
3110-00-114-5987 INTERCHANGEABLE
Bearing,ball,annular
5815-00-125-48937044 INTERCHANGEABLE
Arm,ribbon,reverse
Telemechanics Inc
4930-00-204-25505349744 INTERCHANGEABLE
Adapter,grease Gun Coupling
U S Army Tank Automotive Command Amsta-Im-Mm
8345-00-261-2945 INTERCHANGEABLE
Flag,national
8345-00-263-2525 INTERCHANGEABLE
Flag,national
4730-00-263-649558764-018 INTERCHANGEABLE
Tee,tube
Tld Ace Corp Div Tld Ace
Cross-Reference Index
Part NumberManufacturer
442244 Federal-Mogul Corp Government Sales Dept (USA)
6329 Pdi Ground Support Systems, Inc. (USA)
6659 PRIMARY 893 Mfg, Llc (USA)
6239 Pdi Ground Support Systems, Inc. (USA)
250MD124 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
15-1000 Pdi Ground Support Systems, Inc. (USA)
7044 893 Mfg, Llc (USA)
31679 U M C Electronics Co (USA)
Related Parts
5945-00-007-0637INTERCHANGEABLE
SOLENOID,ELECTRICAL
970005-1
5360-00-038-8941INTERCHANGEABLE
SPRING,FLAT
5995-00-059-4670INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
0594670
5133-00-061-6286INTERCHANGEABLE
DRILL,TWIST
44479
3110-00-114-5987INTERCHANGEABLE
BEARING,BALL,ANNULAR
5815-00-125-4893INTERCHANGEABLE
ARM,RIBBON,REVERSE
7044
4930-00-204-2550INTERCHANGEABLE
ADAPTER,GREASE GUN COUPLING
5349744
8345-00-261-2945INTERCHANGEABLE
FLAG,NATIONAL
8345-00-263-2525INTERCHANGEABLE
FLAG,NATIONAL
4730-00-263-6495INTERCHANGEABLE
TEE,TUBE
58764-018
5310-00-285-9828INTERCHANGEABLE
WASHER,FLAT
5905-00-314-0068INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON

Frequently Asked Questions

What is NSN 5330-01-211-7271?

NSN 5330-01-211-7271 is a Seal,plain Encased, manufactured by 893 Mfg, Llc, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-01-211-7271?

NSN 5330-01-211-7271 has 8 cross-referenced part numbers: 442244 (Federal-Mogul Corp Government Sales Dept), 6329 (Pdi Ground Support Systems, Inc.), 6659 (893 Mfg, Llc), 6239 (Pdi Ground Support Systems, Inc.), 250MD124 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions) and 3 more.

What NSN replaces 5330-01-211-7271?

There are 12 known substitutes for 5330-01-211-7271: 5945-00-007-0637, 5360-00-038-8941, 5995-00-059-4670 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6659?

Key specifications for 6659: Housing Bore Diameter: 2.502 INCHES NOMINAL IN; Seal Width: 0.250 INCHES NOMINAL IN; Case Style: SQUARE; Material Document and Classification: B-86, CAGE 01212 MFR REF SINGLE MATERIAL RESPONSE SEALING ELEMENT. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-01-211-7271 still in active supply?

NSN 5330-01-211-7271 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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